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Selasa, 08 Januari 2013

Dota 2 - Faceless Void Build Guide

BIO
Darkterror the Faceless Void is a visitor from Claszureme, a realm outside of time. It remains a mystery why this being from another dimension believes the struggle for the Nemesis Stones is worth entering our physical plane, but apparently an upset in the balance of power in this world has repercussions in adjacent dimensions. Time means nothing to Darkterror, except as a way to thwart his foes and aid his allies. His long-view of the cosmos has given him a remote, disconnected quality, although in battle he is quite capable of making it personal.

INTRODUCTION
Faceless void is a carry hero that have some specialties. He have a game-breaking ultimate that will lock-down everything in the AoE (including allies and towers) so he can move freely and attacking in his ultimate. He also a decent carry with his damage and a long jump. Be careful in early game, and farming patiently, and conquer in late game.
PROSCONS
Game breaking ultimate. Lock-down everything.Slow attack speed on early game
Have a very long jumpCan trap his friend in his ultimate
Have a chance to auto block a spellIf he got disabled/killed in his ultimate, it's very shame
Can lock-down enemy with each attack
ROLE
Melee - Carry - Initiator - Disabler - Escape

STATS
LEVEL11525
HIT POINTS5871,0131,697SIGHT RANGE1800 / 800
MANA195468923ATTACK RANGE128
DAMAGE58-6495-101142-148MISSILE SPEEDN/A
ARMOR4916

ABILITIES
1. Time Walk
Time Walk, Dota 2 - Faceless Void Build Guide
Rushes to a target location while slowing the movement and attack speed of all enemies along its path for 3 seconds.
MANA COST: 120/120/120/120COOLDOWN: 19/17/15/13
ABILITY: POINT TARGETSLOW: 25% / 30% / 35% / 40%
RANGE: 700 / 900 / 1100 / 1300
Darkterror tears a hole in time, passing through Claszureme, and appearing back in an instant.
This is the longest jump in DotA. 1300 Rang in level 4 is a decent jump for escaping and initiating. The cooldown is relatively long, so don't use it too often, watch out for ganks, only use for very important situation,
1. For avoid being killed,
2. To initiate and then using Chronosphere,
3. Or if it is a sure safe, you can use it for faster walking for faster farming.

2. Backtrack
Backtrack, Dota 2 - Faceless Void Build Guide
Faceless Void dodges damage by jumping backward in time, eluding both physical and magical attacks.
ABILITY: PASSIVEDODGE CHANCE: 10% / 15% / 20% / 25%
Darkterror sees what has yet to be seen.
Have a chance to dodge an attack or a spell. You can be very lucky if by any chance you can dodge a mighty nuke like Laguna Blade or Finger of Death. Try to give portion to luck in your life.

3. Time Lock
Time Lock, Dota 2 - Faceless Void Build Guide
Adds the chance for an attack to lock an enemy unit in time, stunning it and dealing bonus damage. The duration is twice as long against creeps.
ABILITY: PASSIVEDAMAGE: MAGICAL
DURATION: 1CHANCE: 10% / 15% / 20% / 25%
BONUS DAMAGE: 40 / 50 / 60 / 70
The strike of the Faceless Void lands with dimension shifting force.
A very nice skill for a carry. Add a decent damage to your attack and also gives a chance to lock down enemy in his place for 1 second. Just good for killing the enemy.

4. Chronosphere
Chronosphere, Dota 2 - Faceless Void Build Guide
Creates a blister in spacetime, trapping all units caught in its sphere of influence. Only Faceless Void and any units he controls are unaffected. Invisible units in the sphere will be revealed. Upgradable by Aghanim's Scepter.
MANA COST: 150/175/200COOLDOWN: 120/110/100
ABILITY: POINT TARGETRADIUS: 400 / 400 / 400
DURATION: 4 / 4.5 / 5SCEPTER DURATION: 4 / 5 / 6
SCEPTER COOLDOWN: 60 / 60 / 60
When a rift opens to Claszureme, all poor souls caught within will likely never return.
A very good skills that lock-down everything in the AoE of this skill (including allies and towers) except yourself so you can attack the enemy freely. Use your time efficiently in the Chrono, focus on a single target until he dies. This skill is a guarantee a kill if you have a high attack speed and damage.
Be careful not to lock down your own friends. You will give a high benefit to ranged heroes outside the Chrono, wjether they are friends or foe, so make sure they are your friends, or you will be killed folly in your own ultimate.
Aghanim Scepter will increase the skills duration, you can be considering to buy that if you want.
Battlefury will be very useful inside your Chrono, splash attack gives damage to area that will damaging many enemies inside the Chrono.
Also don't forget some attack speed and damage items like Mask of Madness or Daedlus that will guarantee some kills for you.


SKILLBUILD
Dota 2 - Faceless Void Build Guide
Level 1: Time Walk
Level 2: Time Lock
Level 3: Time Lock
Level 4: Backtrack
Level 5: Time Lock
Level 6: Chronosphere
Level 7: Time Lock
Level 8: Time Walk
Level 9 : Time Walk
Level 10: Time Walk
Level 11: Chronosphere
Level 12: Backtrack
Level 13: Backtrack
Level 14: Backtrack
Level 15: Stats
Level 16: Chronosphere
Level 17-25: Stats

Why take Time Walk for level 1? You need Time Walk to escape if enemy wants to get firstblood by killing you.

Why maxed Time Lock first? You need this to farm, for easier last hitting and faster farming. You also need this if you want to gank someone. This skill really boost your damage.

Why maxed Time Walk before Backtrack? You need the low cooldown and long-range jump of Backtrack to increase your mobility for early-mid game. Pro player does this. Mobility is important for fast escape and also fast farming.

Backtrack will be useful for mid-late game where you will need a good defense mechanism because there will be many teamfights happening.

STRATEGY
Early Game
Since the earliest of the game, try to last hits everything. You need golds. Gold is the most important thing for you. You need many items, many quality items. You should farming everywhere, from lane to jungle. Sweep out all the creeps! You can also increase your farming quality using Hand of Midas that will boost your gold and experience.

Mid Game
Into the mid game, you should continue your farming. No more important activitie for you than farming. Farming quickly so you can earn some good items and deal lots of damages in teamfights in mid-late game. Jungle is a nice option, in jungle there are many creeps that will benefits you. Lots of golds are awaiting in the jungle. Time Lock does really helps you in farming phase, it will gives a decent damage to creeps so does lock down enemies once in a while.
If there is a teamfight situation near you, you can help your team using Chronospere and attacking the enemy. Be careful not to lock-down your friends or they will be mad at you.
Quickly farm nice items like Mask of Madness or Battlefury will helps you to damaging enemies in your Chrono.
Dota 2 - Faceless Void Build Guide
Late Game
This is your time to shine. Show your true self. Here you should already have a very high damage to killing the enemies. Just need to jump inside the enemy crwods, use your Chrono, and the right click enemies one-by-one. Use your damage and attack speed as efficient as possible, focus on a single target and change target if he already dead. Battlefury will helps you a lot in your Chrono because it gives Cleave Ability for your attack.
You are the main source of damage for your team, make your team proud to have you.

ITEM BUILD
1. Quelling Blade
Cost: 225
Quelling Blade, Dota 2 - Faceless Void Build Guide
Active: Destroy Tree - Destroy a target tree.
Passive: Quell - Gives bonus attack damage against non-hero units, depending on the type of hero you are.   MELEE BONUS: 32%     RANGED BONUS: 12%      Cooldown: 5
Why Quelling Blade? Makes you easier to lasthit every creeps.

2.  Hand of Midas
Total cost: 1400
Recipe: Gloves of Haste + Recipe
Hand of Midas, Dota 2 - Faceless Void Build Guide
Active: Transmute - Kills a non-hero target for 190 gold and 2.5x experience. Cannot be used on Ancients. + 30 Attack Speed
Cooldown   100
Why Hand of Midas? It will boost your golds and exp so you can be the richest in the maps. Will makes you  can wipe out jungle quickly.

3.  Power Threads
Total cost: 1400
Recipe: Gloves of Haste, Boots of Speed, Belt og Giant Strength/ Robe of Magi/ Band of Elvenskin
 Power Threads, Dota 2 - Faceless Void Build Guide
Active: Switch Attribute - Changes selected attribute between Strength, Agility and Intelligence.
Flat movement speed bonuses from multiple pairs of boots do not stack. + 55 Movement Speed
+ 8 Selected Attribute   + 30 Attack Speed
Why Power Threads? It will gives you attack speed, thats what you need, attack speed and damages. Power threads is laso a flexible shoes, you can change it to STR, AGI, or INT for what you need.
STR for Survivability, AGI for damage and attack speed, and INT for mana.

4. Mask of Madness
Total Cost: 1900
Recipe: Morbid Mask/Mask of Death(Dota1) +Recipe
Mask of Madness, Dota 2 - Faceless Void Build Guide
Active: Berserk - Gives 100 attack speed and 30% movement speed but causes you to take extra 30% damage. Lasts 12 seconds.
Passive: Lifesteal - Grants lifesteal on attacks.
Mask of Madness is a Unique Attack Modifier, and does not stack with other Unique Attack Modifiers. LIFESTEAL: 17%     Cooldown:25     Manacost: 25
Why Mask of Madness? It will gives you + Attack Speed to destroys enemies quickly. This is what you need as a carry, attack speed. This will also gives you movement speed and lifesteal.

5. Battle Fury
Total Cost: 225
Recipe: Broadsword, Claymore, Preserverance
Battle Fury, Dota 2 - Faceless Void Build Guide
Passive: Cleave - Deals a percent of attack damage in a 225 AoE around the target. Does not work on ranged heroes.
Cleave damage on non-primary targets is not reduced by armor values. + 65 Damage
+ 6 HP Regeneration     + 150% Mana Regeneration      CLEAVE DAMAGE: 35%
Why Battlefury? Makes you faster in farming creeps. Makes your gold flow faster. Your job is to farms, this item will really help.

The most important is, you will need the Cleave inside your Chrono. It will makes you have a splashed attack to demolish all enemies inside your Chrono.

6. You can increase your DPS more. Choose your own DPS items.As a carry, damage is your priority.
Daedlus, Dota 2 - Faceless Void Build GuideMKB, Dota 2 - Faceless Void Build GuideAbyssal Blade, Dota 2 - Faceless Void Build GuideDivine Rapier, Dota 2 - Faceless Void Build Guide

DAEDLUSMKBABYSSALDIVINE RAPIER
DAMAGE
81
88
100
300
ABILITY
CRITICAL 2.4
100% HITS
STUN
NONE
CHANCE
25%
MINIBASH 35%
DAMAGE: 100
MELEE: 25 %
RANGE: 10%
NONE
OTHER
NONE
+15 ATK SPEED
+10 STRENGTH
2 SEC STUN
NONE
DAEDLUS: Daedlus will provide you with a powerful Critical Strike.
MKB: 100% HITRATE will helps you to fight some evasion heroes like Mortred or Rikimaru.
ABYSSAL: A decent +100 damage and makes you become a Stunner
RAPIER: Be careful if you choose to hold this. 1 hit kill is a sure. 2-3 hits is the worst. Need protection from your support. Must come if the situation is clear safe for you to come inside the teamfight. Need some disabler friends.

7. Butterfly
Total cost:: 6000
Recipe: Talisman of Evasion, Eaglesong, Quarterstaff
Butterfly, Dota 2 - Faceless Void Build Guide
+ 30 Agility            + 30 Damage
+ 35% Evasion      + 30 Attack Speed
Why Butterfly?
It gives you more damage and more attack speed that makes you become much more powerful. It also gives evasion to helps you survive in teamfight. Battlefury is always a good item for a carry.

Item that Considered Good for You
8. Refresher Orb
Total cost: 5300
Recipe: Obilivion Staff + Preserverance + Recipe
Refresher Orb, Dota 2 - Faceless Void Build Guide
Active: Reset Cooldowns - Resets the cooldowns of all your items and abilities.
+ 5 HP Regeneration
+ 200% Mana Regeneration
+ 40 Damage
+ 6 Intelligence
Manacost: 375   Cooldown: 160
Why Refresher? 2 Times Ultimate, your teamfights will be able to Chrono for  2 times. That means it will gives you the ability to lock-down majority enemies for about 10 seconds. Almost guarantee a victory for the game if you can land your Chrono perfectly.

GOOD ALLIES
1. Ranged-Carries
(Example: Clinkz, Drow Ranger, Sniper, Nevermore, Weaver)
Clinkz, Dota 2 - Faceless Void Build GuideDrow Ranger, Dota 2 - Faceless Void Build GuideSniper, Dota 2 - Faceless Void Build GuideNevermor, Dota 2 - Faceless Void Build GuideWeaver, Dota 2 - Faceless Void Build Guide
They are all have a high damage ranged attacks that will be very comfortable to attack enemies that is trapped inside your Chrono from outside the Chrono.

2. Good Ultimate/Skills from outside the Chrono
They have some nice skills that needs a good positioning to deal the maximum damage.
(Example: Lich, Destroyer, QoP, Invoker, Ezalor)
Lich, Dota 2 - Faceless Void Build GuideDestroyer, Dota 2 - Faceless Void Build GuideQoP, Dota 2 - Faceless Void Build GuideInvoker, Dota 2 - Faceless Void Build GuideEzalor, Dota 2 - Faceless Void Build Guide
Lich: His ChainFrost needs enemy to be near with each other. Your Chrono provide  a perfect setup for ChainFrost because it will stop enemies and cannot move away from each other. That's why Lich ultimate will bouncing perfectly inside the Chronosphere
Obsidian Destroyer: He have a nice AoE ultimate that need enemy to be near with each other. Chronosphere is a perfect set up for his skill.
QoP: He have Sonic Wave that need enemy to be near with each other. Chronosphere is a perfect set up for his skill.
Invoker: Have Meteor that need enemy to be near with each other. Chronosphere is a perfect set up for his skill. Attention! For Invoker: Don't use Tornado inside the Chronosphere, it makes Void can't attack the enemy
Ezalor: Have Illuminate  that need enemy to be near with each other. Chronosphere is a perfect set up for his skill.

3. Supportive Heroes
(Example: Shadow Shaman, Crystal Maiden, Vengeful Spirit)
Shadow Shaman, Dota 2 - Faceless Void Build GuideCrystal Maiden, Dota 2 - Faceless Void Build GuideVengeful Spirit, Dota 2 - Faceless Void Build Guide
Supportive heroes have disables and nice skill to helps carries and makes a teamfight easier for the team.
Shadow shaman: Have hex, shackles, and wards to helps you disables enemy
Crystal Maiden: Have 1 lockdown, 1 slower, and have +mana regeneration
Vengeful Spirit: Have stun, swap, and +damage aura

BAD ENEMIES
1. Ranged-Carries
(Example: Clinkz, Drow Ranger, Sniper, Nevermore, Weaver)
Clinkz, Dota 2 - Faceless Void Build GuideDrow Ranger, Dota 2 - Faceless Void Build GuideSniper, Dota 2 - Faceless Void Build GuideNevermor, Dota 2 - Faceless Void Build GuideWeaver, Dota 2 - Faceless Void Build Guide
They are all have a high damage ranged attacks that will be very comfortable to attack their target that are trapped inside your Chrono from outsidee Chrono.
But the problem is, if they are not your friends, they will conveniently attacks you while you are inside the Chrono.

2. Pudge
Pudge, Dota 2 - Faceless Void Build Guide
Beware if your friend are in his Rot, Chrono makes your friend cant escape from Pudge.

VIDEO SECTION
1. Advanced Mechanics of Faceless Void.
Know more about Faceless Void by watching this video.

  2. Pyrion Flax Guide about Void
A Cool Guide about Faceless Void

  FANART
Water, Dota 2 - Faceless Void Build GuideLightning, Dota 2 - Faceless Void Build Guide

Bashing, Dota 2 - Faceless Void Build GuideChrono, Dota 2 - Faceless Void Build Guide

Tree, Dota 2 - Faceless Void Build GuideBlack and White, Dota 2 - Faceless Void Build Guide

Rabu, 02 Januari 2013

Dota 2 - Ogre Magi Build Guide

BIO
The ordinary ogre is the creature for whom the phrase 'As dumb as a bag of rock hammers' was coined. In his natural state, an ogre is supremely incapable of doing or deciding anything. Clothed in dirt, he sometimes finds himself accidentally draped in animal skins after eating lanekill. Not an especially social creature, he is most often found affectionately consorting with the boulders or tree-stumps he has mistaken for kin (a factor that may explain the ogre's low rate of reproduction). However, once every generation or so, the ogre race is blessed with the birth of a two-headed Ogre Magi, who is immediately given the traditional name of Aggron Stonebreak, the name of the first and perhaps only wise ogre in their line's history. With two heads, Ogre Magi finds it possible to function at a level most other creatures manage with one. And while the Ogre Magi will win no debates (even with itself), it is graced with a divine quality known as Dumb Luck--a propensity for serendipitous strokes of fortune which have allowed the ogre race to flourish in spite of enemies, harsh weather, and an inability to feed itself. It's as if the Goddess of Luck, filled with pity for the sadly inept species, has taken Ogre Magi under her wing. And who could blame her? Poor things.

INTRODUCTION
Ogre Magi is a nuker-support hero that known for his ability to multicast his skills. He can doubled the effect of his skills and make his ordinary skill to be a powerful skill .He uses his 2 main nukes skill: Fireblast and Ignite, and spam those two skills through the game. He is a decent single targetted stun that can shut down enemies and he mainly use this skill to gank or in teamfights. He also have a skill to increase an attack speed and movespeed of allied heroes. Ogre Magi: Stupid but useful
Dota 2 - Ogre Magi Build Guide
ROLE
Melee - Nuker - Disabler - Durable

STATS
LEVEL11525
HIT POINTS5871,4382,426SIGHT RANGE1800 / 800
MANA2216581,230ATTACK RANGE128
DAMAGE58-6492-98136-142MISSILE SPEEDN/A
ARMOR6914

ABILITIES
1. Fireblast
Fireblast, Dota 2 - Ogre Magi Build Guide
Blasts an enemy unit with a wave of fire, dealing damage and stunning the target.
MANA COST: 75/85/95/105COOLDOWN: 12
ABILITY: UNIT TARGETAFFECTS: ENEMY UNITS
DAMAGE: MAGICALDAMAGE: 80 / 145 / 210 / 275
STUN DURATION: 1.5
The Ogre Magi is easily amused, entertained for hours by playing with fire.
This is your main skill for the game, with this skill you will do: ganking, chasing, or stun a target at a teamfight.
You must increase this skill first, this is your most important skill, you can make opponent to can't move with this skill. This skill will guarantee a successful gank.

1.a. Unrefined Fireblast
Unrefined Fireblast, Dota 2 - Ogre Magi Build Guide
Blasts an enemy unit with a wave of fire, dealing damage and stunning the target.
MANA COST: 400COOLDOWN: 10
ABILITY: UNIT TARGETAFFECTS: ENEMY UNITS
DAMAGE: MAGICALDAMAGE: 275
STUN DURATION: 1.5
The 'who-casts-spell-first' argument between himself is solved simply by both casting at once.
With an Aghanim Scepter you will be able to cast this skill, this makes you have two same skill, you will have 2 Fireblast but this Unrefined Fireblast have a high manacost. But don't worry, on mid-late game, you should already have the mana you need to do your 2 Fireblast together. Cast this after 1 second of first fireblast duration to make your stun longer. Or cast this to 2 different targets and stun 2 out of 5 opponents.
This skill also have a chance of Multicast, and that will be so painful for opponent.

2. Ignite
Ignite, Dota 2 - Ogre Magi Build Guide
Drenches a target in volatile chemicals, causing it to burst into flames. The target is in immense pain, taking damage and moving more slowly.
MANA COST: 95/105/115/125COOLDOWN: 15
ABILITY: UNIT TARGETAFFECTS: ENEMY UNITS
DAMAGE: MAGICALDURATION: 4 / 5 / 6 / 7
BURN DAMAGE: 26 / 32 / 38 / 44SLOW: 20% / 22% / 24% / 26%
Batter up!
Your othe nuke, with this skill, you will do an aoe nuke that will burn it's target and deal damage over time to an area. The enemy affected by this skill will also be slowed and that makes you can catch them and kill them together with your friends.

3. Bloodlust
Bloodlust, Dota 2 - Ogre Magi Build Guide
Incites a frenzy in a friendly unit, increasing its movement speed and attack speed.
MANA COST: 75COOLDOWN: 20
ABILITY: AUTO-CAST, UNIT TARGETAFFECTS: ALLIED UNITS
DURATION: 30MOVE SPEED: 10% / 12% / 14% / 16%
ATTACK SPEED: 20 / 30 / 40 / 50
'Running's not as fun as hitting... Not one bit fun.'
Increase attack speed and movement speed of a target. If you already increased your ultimate, this skill will increase attack speed and movespeed of some stick heroes together. Very good to helps your carry, imagine some carry, like void or magina have their attack speed increased more, they will be some monstrous carries. Also possible to cast this to yourself and helps you to deal some attacks.

4. Multicast
Multicast, Dota 2 - Ogre Magi Build Guide
Enables the Ogre Magi to rapidly cast his spells, giving them greater potency. Gives a chance to cast a spell multiple times in one cast. Increases Fireblast's mana cost and decreases its cooldown, adds an area of effect to Ignite and reduces Bloodlust's cooldown and gives it a chance to cast on random allies around Ogre Magi. Upgradable by Aghanim's Scepter.
ABILITY: PASSIVEFIREBLAST MANA INCREASE: 30 / 70 / 110
IGNITE RADIUS: 150 / 300 / 450FIREBLAST COOLDOWN REDUCTION: 2 / 4 / 6
BLOODLUST RADIUS: 575BLOODLUST COOLDOWN REDUCTION: 5 / 10 / 15
2X CHANCE: 25% / 40% / 50%3X CHANCE: 0% / 20% / 25%
4X CHANCE: 0% / 0% / 12.5%IGNITE CAST RANGE INCREASE: 150 / 300 / 450
Despite being largely incapacitated by his IQ, the Ogre Magi's success in battle is attributed to pure skill.
Makes you can multicast your skills. Fireblast can become a skill that has 275 x 3 damage. That will be the same as the strongest single targetted spell in Dota: Laguna Blade.
Increase Ignite radius. Will be helpful to deal damages to enemy's in crowds.
Makes bloodlust to be an aoe, and can instantly increase movespeed and attack speed of 2-4 heroes together.
Also increase ignite cast range, very useful to chase enemy.
Also decrease bloodlust and fireblast cooldown. Makes your skills more spammable.

SKILLBUILD
Dota 2 - Ogre Magi Build Guide
Level 1: Fireblast
Level 2: Ignite
Level 3: Fireblast
Level 4: Ignite
Level 5: Fireblast
Level 6: Multicast
Level 7: Fireblast
Level 8: Ignite
Level 9 : Ignite
Level 10: Bloodlust
Level 11: Multicast
Level 12: Bloodlust
Level 13: Bloodlust
Level 14: Bloodlust
Level 15: Stats
Level 16: Multicast
Level 17-25: Stats

Why maxed Fireblast first? This is your main skill for the game, you can use this to:
1. Harass enemies and try to get firstblood
2. Ganks enemies
3. Disable 1 target in a teamfight.

Why maxed Ignite before Bloodlust? This is your nuke. You should combine this skill with Fireblast and use that 2 skill together with harmony, Fireblast first and then Ignite second. This is your combo to ganks.
Also Ignites is a nuke and should be maxed on early-mid game. And bloodlust will boost attack speed which is will be needed at late game.

STRATEGY
Early Game
On early game, you can be the wards buyer and animal courier buyer, it depends on your team, the team wants you to buy those or not. You are considered a support, this is one of your job. On early game, you can support your team using your two main skill, Fireblast and Ignite, with those two skills, you can harass opponents and reduce their HP to make them inconvenience on early game. Fireblast have good chance to make your team gets Firstblood, after your enemy is stunned, you need your friends to helps you to knock enemy's down.

Mid Game
On mid game, I assume that you already achieved level 6 and already has Multicast. Multicast will makes you a more powerful nuker. It will have a chance to multicast your skill. It have a chance to deal 2-4 times fireblast damage. With that high damage, you can makes enemy on half HP in 1 sec, and with that the enemy is likely to be killed. Multicast also increase ignite radius that will make the Ignite to be an AoE skill that can burns lots of enemies.
Here, in this stage of the game, you should roaming around the map. You should finding enemies to gank. Choose the easier enemy first, coordinate the gank with your friends, tell him that you want to gank X, and focus fire on X you can ignore other enemy, and just kill X, and after X get killed by your team, you can chase the next target. Focus is the key of successful ganks. Be focus with 1 hero and be the OWNING ones.
In this stage of the game, you should also consider to buy Aghanim and makes you get your next Fireblast so you will have 2 Fireblast.
Fighting, Dota 2 - Ogre Magi Build Guide

Late Game
On late game, your part is the same, your part is to support your team with all your skills. You have Fireblast to stun enemy, or even better with 2 Fireblasts if you buy Aghanim Scepter. Also you have Ignite to deal damage per second to enemies.
Remember to prepare your team with additional attack speed using Bloodlust. Cast bloodlust to your carries before the teamfight. He shoul have his attack speed increased for the good of the team.
In a teamfight, you already have Aghanim, better to cast your 2 Fireblasts on diferent targets, it will stuns 2 out of 5 enemies. It will reduce lots of opponents power.
You should also consider buying supportive items like Sheepstick, it will makes you a better support, you will have 3 disables.

ITEM BUILD
1. Arcane Boots
Total cost: 1450
Recipe: Boots of Speed + Energy Booster
Arcane Boots, Dota 2 - Ogre Magi Build Guide
Active: Replenish Mana - Restores mana in an area around the hero.
Flat movement speed bonuses from multiple pairs of boots do not stack.
+ 60 Movement Speed
+ 250 Mana
MANA RESTORED: 135
Mana Needed: 25    Cooldown: 55
Why Arcane Boots? You have spammable skills, so you need more mana, with this item, your mana will be fulfilled. And also to replenish mana of the team.

2. Aghanim's Scepter
Total cost:: 4200
Recipe: Point Booster, Ogre Axe, Staff of Wizardy, Blade of Alacrity
Aghanim's Scepter, Dota 2 - Ogre Magi Build Guide
Passive: Ultimate Upgrade - Upgrades the ultimates of certain heroes.
+ 10 All Attributes   + 200 Health   + 150 Mana
Why Aghanim's Scepter?
You will get one more Fireblast. Very useful to disables more enemy.
Also makes you kinda tanker, helps you tank damages.

3.  Schyte of Vyse
Total cost: 5675
Recipe: Mystic Staff + Ultimate Orb + Void Stone
Schyte of Vyse, Dota 2 - Ogre Magi Build Guide

Active: Hex - Turns a target unit into a harmless critter for 3.5 seconds. Destroys illusions.
+ 10 Strength   + 10 Agility  + 35 Intelligence
+ 150% Mana Regeneration
Manacost: 100   Cooldown: 35
Why Schyte of Vyse? Very good item to initiate a teamfight.

4. Blink Dagger
Cost: 2150
Blink Dagger, Dota 2 - Ogre Magi Build Guide
Active: Blink - Teleport to a target point up to 1200 units away. If damage is taken from an enemy hero, Blink Dagger cannot be used for 3 seconds.
Manacost: 75   Cooldown: 14
Why Blink Dagger?
1. Perfect for initiating a teamfight
2. Helps you escape

6. Shivs's Guard
Total cost: 4700
Recipe: Plate Mail + Mystic Staff + Recipe
Shiva's Guard, Dota 2 - Ogre Magi Build Guide
Active: Arctic Blast - Emits a freezing wave that does 200 damage to enemies and slows their movement by -40% for 4.0 seconds.
Passive: Freezing Aura - Reduces attack speed on enemies.
Multiple instances of Freezing Aura do not stack.
+ 30 Intelligence   + 15 Armor
AURA SLOW: 25%
Manacost: 100   Cooldown:   30
Why Shiva's? Helps you chase enemies faster because this item will slow down your target. + Arctic Blast (More Slow and 200 damage)

If you want to be more support, buy Mekansm and Pipe after you have Arcane boots.

3. Mekansm
Total cost: 2306
Recipe: Headress + Buckler + Recipe
Mekansm, Dota 2 - Ogre Magi Build Guide
Active: Restore - Heals 250 HP and gives +2 armor in an area.
Passive: Mekansm Aura - Bonus HP Regen in an area.
Multiple instances of Mekansm Aura do not stack
+ 5 All Attributes
+ 5 Armor
BONUS HP REGEN: 4
Mana:150   Cooldown:45
Why Mekansm? Heal for all allies in AoE, is a must for teamfights.

4 Pipe of Insight
Total cost: 3628
Recipe: Hood of Defiance + Headress + Recipe
Pipe of Insight, Dota 2 - Ogre Magi Build Guide
Active: Barrier - Gives nearby friendly units a shield that blocks 400 spell damage.
Multiple instances of spell resistance from items do not stack.
+ 11 HP Regeneration
+ 30% Spell Resistance
Manacost: 100   Cooldown: 60
Why Pipe of Insight? Gives barrier for all allies in AoE that Block 400 spell damage, very useful.

GOOD ALLIES
1. Carries
(Example: Magine, Void, Luna)
Anti Mage, Dota 2 - Ogre Magi Build GuideFaceless Void, Dota 2 - Ogre Magi Build GuideLuna, Dota 2 - Ogre Magi Build Guide
Carries should come after you initiate a teamfight, and they should the right click and use all their skills to the enemies. They also will get benefit from you Bloodlust, they will get additional attack speed.

2. Ganker Heroes
(Example: Shadow Shaman, Crystal Maiden, Vengeful Spirit)
Shadow Shaman, Dota 2 - Doom Bringer Build GuideCrystal Maiden, Dota 2 - Doom Bringer Build GuideVengeful Spirit, Dota 2 - Doom Bringer Build Guide
Ganker heroes have disables and nice skill to to ganks together with you.
Shadow shaman: Have hex, shackles, and wards to helps you disables enemy, and Lightning for damages.
Crystal Maiden: Have 1 ice prison, 1 slower, and have +mana regeneration
Vengeful Spirit: Have stun, swap, and +damage aura

VIDEO SECTION
1. Purge Plays Ogre Magi
Purge, a dota commentator, make a nice video about how to play Ogre.

  2. Alan Plays Ogre Magi
Alan also gives you a nice example on how to play Ogre Magi

  FANART
Strong, Dota 2 - Ogre Magi Build GuideCute, Dota 2 - Ogre Magi Build Guide

Cute, Dota 2 - Ogre Magi Build GuideCute, Dota 2 - Ogre Magi Build Guide
Cute, Dota 2 - Ogre Magi Build GuideCute, Dota 2 - Ogre Magi Build Guide
Cute, Dota 2 - Ogre Magi Build GuideCute, Dota 2 - Ogre Magi Build Guide

Cute, Dota 2 - Ogre Magi Build GuideCute, Dota 2 - Ogre Magi Build Guide
Cute, Dota 2 - Ogre Magi Build GuideCute, Dota 2 - Ogre Magi Build Guide