Dota 2 - Chaos Knight Build Guide

BIO
The veteran of countless battles on a thousand worlds, Chaos Knight hails from a far upstream plane where the fundamental laws of the universe have found sentient expression. Of all the ancient Fundamentals, he is the oldest and most tireless-endlessly searching out a being he knows only as "The Light." Long ago the Light ventured out from the progenitor realm, in defiance of the first covenant. Now Chaos Knight shifts from plane to plane, always on the hunt to extinguish the Light wherever he finds it. A thousand times he has snuffed out the source, and always he slides into another plane to continue his search anew.

Upon his steed Armageddon he rides, wading into battle with maniacal frenzy, drawing strength from the disorder of the universe. A physical manifestation of chaos itself, in times of need he calls upon other versions of himself from other planes, and together these dark horsemen ride into battle, as unstoppable as any force of nature. Only when the last Light of the world is scoured from existence will the search be ended. Where rides the Chaos Knight, death soon follows.

INTRODUCTION
Chaos Knigh is a Powerful Carry late Game hero because he have illusions that deals a full damage as illusions. If enemy have no AoE skill, Nessaj is almost 100% can carry his team into Victorious. He is also a tanky hero that have a high survivability. Nessaj also have a powerful Critical Strike that will crush any enemy that dare to face him. Not just it, he also have a stun and have a skill to make the target pulled into him and then he can easily attack the target. Icefrog Present: The most Powerful Strength hero in DotA.

PROS	CONS
3 Clones that deal 100% damage	If facing too much AoE damage, illusion will die quickly.
Have critical strike	Mana pool is considered low
Stun can last 4 seconds (if lucky)
Tanky
Can play many role for the team: Carry, Ganker, Initiator, Tanker
Very High Movement Speed

ROLE

Melee - Carry - Disabler - Durable - Pusher

STATS

LEVEL	1	15	25
HIT POINTS	531	1,031	2,232	SIGHT RANGE	1800 / 800
MANA	208	426	842	ATTACK RANGE	128
DAMAGE	49-79	90-120	139-169	MISSILE SPEED	N/A
ARMOR	4	8	14

ABILITIES
1. Chaos Bolt

Throws a mysterious bolt of energy at the target unit. It stuns for a random duration and deals random damage.

MANA COST: 140/140/140/140	COOLDOWN: 10
ABILITY: UNIT TARGET	AFFECTS: ENEMY UNITS
DAMAGE: MAGICAL	MINIMUM STUN: 1 / 1 / 1 / 2
MAXIMUM STUN: 2 / 3 / 4 / 4	MINIMUM DAMAGE: 1 / 50 / 75 / 100
MAXIMUM DAMAGE: 200 / 225 / 250 / 275	CONTOH: DIHAPUS10

Even Chaos Knight cannot predict this manifest of unholy energy.
This is a decent single targetted stun. On level 4, this skill can stun vary from 2 to 4 seconds. Just imagine your target stunned for 4 seconds and beaten by you + your 3 illusions with real damage. It is almost 100% a death sentence for him. This is your main skill for disabling your enemy. Makes you a decent ganker for the game. Disables 1 enemy for 4 seconds in the teamfights means he will be useless for the teamfight.

2. Reality Rift

Teleports you, any images you have and the target unit to a random point along the line between the two of you. Gives you bonus attack damage for one attack.

MANA COST: 70/70/70/70	COOLDOWN: 24/18/12/6
ABILITY: UNIT TARGET	AFFECTS: ENEMY UNITS
RANGE: 550 / 600 / 650 / 700	BONUS DAMAGE: 25 / 50 / 75 / 100
BONUS DURATION: 1.2

Armageddon rides between the planes, bringing Chaos Knight to his victim wherever he may hide.
Pull your target into you. This will makes you can chase your target and beat him easily. This is a needed skill for chasing your target. Always use this skill before attacking your target. You also gain some bonus damage from this skill.

3. Chaos Strike

Chaos Knight's mojo gives him a chance to deal bonus damage.

ABILITY: PASSIVE	CRITICAL DAMAGE: 150% / 200% / 250% / 300%
CRITICAL CHANCE: 10%

Chaos Knight's unwieldy power bludgeons those who stand before him, crushing the thickest of armors.
A powerful critical strike. Very good. This skill makes you a decent carry. This skill is already powerful and not just it, your image deals critical too. It will make your damage output become monstrous. With this skill, no enemy willing to fight you 1 vs 1, especially for some squishy hero like Crystal Maiden, or Venomacer. They will be very afraid if they meet you in the road or jungle.
This skill is mainly useful for late game teamfights where physical attacks become the dependant of the champion of the game. With this skill your team should not be afraid of lack physical attack. You will fulfill the needs of physical damage for your team.

4. Phantasm

Summons several copies of the Chaos Knight from alternate dimensions. The illusions deal full damage, but take double damage.

MANA COST: 125/200/275	COOLDOWN: 140
ABILITY: NO TARGET	DURATION: 24 / 24 / 24
NUMBER OF ILLUSIONS: 1 / 2 / 3

Drawing on his battles fought across many worlds and many times, phantasms of the Chaos Knight rise up to quell all who oppose him.
This is your skill that makes enemy afraid of you. With this skill activated, you will summon your illusions and it will make enemy to afraid of you if he don't have an AoE skill. The damage output of your illusions is the real damage, not the percentage damage, and also your illusion will deal critical too, with 100% of damage x 4 man x Crits. Just do the math, no opponents dare to face you directly 1 vs 1 if he don't have a cleave or a decent AoE spell. With this skill, in a teamfight, you will be OWNING!! easily. And maybe got a TRIPLE KILL!! or something like that. Remember that the damage output is just too high for enemy to handle.

Beware of some AoE skills like Echo Slam (Earthshaker), Avalanche-Toss (Tiny), or Stone Gaze (Medusa). They will makes your important illussions to banish like dusts.

SKILLBUILD

Level 1: Chaos Bolt
Level 2: Chaos Strike
Level 3: Chaos Bolt
Level 4: Reality Rift
Level 5: Chaos Bolt
Level 6: Phantasm
Level 7: Chaos Bolt
Level 8: Reality Rift
Level 9 : Reality Rift
Level 10: Reality Rift
Level 11: Phantasm
Level 12: Chaos Strike
Level 13: Chaos Strike
Level 14: Chaos Strike
Level 15: Stats
Level 16: Phantasm
Level 17-25: Stats

Why maxed Chaos Bolt first?  This is your main nuke, you will need this for ganking and killing or early mid game.

Why take 1 level of Chaos Strike for early game, it will help you to deal more damage to creeps or to early-mid ganks.

Why maxed Reality Rift before Chaos Strike? The rule of DotA: Nukes for early game, physical damage for late game.  Reality Rift is a nuke that will  deal more damage on early-mid game. And the most importantly, you need the low coldown of Reality Rift to be able to spam this skill. And Chaos Strike is for physical attacks that will be the main source of damages for mid-late game.

STRATEGY
Early Game
On early game, if you want to steal the Firstblood! increase Chaos Bolt and use the stun to lock your enemy so your team can beat him and get the FB.

On early game, your focus is on last hitting. 1 level of Chaos Strike and a Quelling Blade will helps you in this case. Farm as many creeps as you can and save the gold to buy nice items for the late game. Always check if your enemy is on a bad position, like if he is to late to go back and your creeps will surround him if he is stunned. Then: stun him!, and use Reality Rift and then kill him!

Mid Game
Mid game is the ganking time, except if you are a full farmer for the late game.
Then if you choose to ganks, Find the weak opponent in other lane, and come from the jungle behind your target. Your strategy is to stun him and use Reality Rift on him, and then you can use Phantasm to increase your damage output. Remember that more number will defeat the less number. So if you gank someone, ask your friends to gank together and make it sure that your target will be killed with your combo.

Late Game
It's the time to get TRIPLE KILL!!, ULTRA KILL!!, or RAMPAGE!!.
Phantasm and Chaos Strike will reach it's potential here. You will deal tons of damage in a teamfight.With you + your 3 illusions all deal 100% damage and Critical Strike, nothing is impossible for your team. You can turn back the fight or so.
Just be careful of some AoE hero that can destroy your illussions quickly.
As a Chaos Knight, it is possible that if you lose control of your hero, and Chaos Knight attack uncontrolled and brutally, and you can still lucky and got TRIPLE KILL!!, ULTRA KILL!!, or RAMPAGE!!.
Chaos Knight is a chaos in a teamfight. He bring Chaos. So don't expect a calm teamfight. Fight brutally with all your illusiions and achieve GODLIKE!!

ITEM BUILD
1. Quelling Blade
Cost: 225

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.  Power Threads
Total cost: 1400
Recipe: Gloves of Haste, Boots of Speed, Belt og Giant Strength/ Robe of Magi/ Band of Elvenskin

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.

3. Drum of Endurance
Total Cost: 1725
Recipe: Bracer + Robe of Magi + Recipe

Active: Endurance - Gives bonus +10 attack and +10% movement speed to surrounding allies. Passive: Swiftness Aura - Gives bonus attack and movement speed to surrounding allies. Multiple instances of Swiftness Aura do not stack. + 9 All Attributes + 3 Damage    AURA ATTACK SPEED: 5    AURA MOVE SPEED: 5% Cooldown: 30

Why Drums? It will gives you survivability with + STR and gives you +Attack speed that will benefit you because you are considered a carry-tanker

4. Sange & Yasha

Total cost: 4100
Recipe: Sange (Ogre Axe, Belt of Giant Strength) + Yasha (Blade of Alacrity + Boots of Elvenskin)

Passive: Greater Maim - Gives a chance on attack to slow movement speed for 4.0 seconds. Percentage based movement speed bonuses from multiple items do not stack. + 12 Damage + 16 Strength    + 16 Agility    + 15 Attack Speed     + 12% Movement Speed MAIM CHANCE: 15%    SLOW: 30%

Why Sange & Yasha? It will makes you more tanky, more damage, more attack speed and more movement speed + gives a slower with you attack. Very good item for a carry-tanker like you.

5. Assault Cuirass
Total cost:: 5300
Recipe: Platemail, Hyperstone, Chainmail, Recipe

Passive: Assault Aura - Grants attack speed and armor to nearby allied units, and decreases armor for nearby enemies. Multiple instances of Assault Aura do not stack. + 35 Attack Speed     + 10 Armor       AURA ATTACK SPEED: 20 AURA BONUS ARMOR: 5                ARMOR REDUCTION: 5

Why Assault Cuirass?
Increase attack speed that makes your damage flowing rapidly, it is very good because you already have very high damage, it also gives you +aura for the team and your clones.
+Armor aura is very important for late game, so good for increasing team's defense.
- Armor aura is important for late game too because thr damage dealt from your teams will be increased

And for late game
6. You can increase your DPS more. Choose your own DPS items.As a carry, damage is your priority.

	DAEDLUS	MKB	ABYSSAL	DIVINE 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. But don't forget to give more Survivability for yourself and buy item like

Black King Bar Total cost:: 3900 Recipe: Ogre Axe, Mithril Hammer, Recipe	Heart of Tarrasque Total cost: 5500 Recipe: Reaver + Vitality Booster
Active: Avatar - Grants magic immunity. Duration and cooldown decrease with each use. Some Ultimate abilities are able to disable through Black King Bar. + 10 Strength + 24 Damage     DURATION: 10/9/8/7/6/5     Cooldown: 80	Passive: Health Regeneration - Restores a percentage of max health per second. This ability is disabled if damage is taken from an enemy Hero or Roshan within the last 4 seconds if your hero is melee or 6 seconds if your hero is ranged. + 40 Strength   + 300 Health     HEALTH RESTORED: 2%    Cooldown:
Why Black King Bar? It gives you survivability in a teamfight because you will get magic immunity during teamfight. Black King Bar, will make you immune to magic for several seconds	Why Heart of Tarrasque? Makes you tanky. So good item for late game.

For Lifesteal on the late game, buy this
8. Satanic
Total Cost: 5850

Recipe: Tarrasque + Helm of the Dominator + Recipe 

Active: Unholy Rage - Increases Lifesteal by 175% for 3.5 seconds. Passive: Lifesteal - Gives Lifesteal on attacks. Satanic is a Unique Attack Modifier, and does not stack with other Unique Attack Modifier. + 20 Damage    + 25 Strength    + 5 Armor    LIFESTEAL: 25%   Cooldown: 35

Why Satanic? It will really helps you to survive in a hard condition in a teamfight. It will gives you lifesteal, Strength, and Armor, thats all what you need to survive in a teamfight. If your HP become low, immediately use unholy rage, and attacks your enemy and your HP will be full again in seconds.

And don't forget this for the late game
9. Boots of Travel
Total cost: 2450
Recipe: Boots of Speed + Recipe

Active: Teleport - Teleports you to an allied non-hero unit or structure. Flat movement speed bonuses from multiple pairs of boots do not stack. + 100 Movement Speed Manacost: 75   Cooldown60

Why Boots of Travel? With the creeps becoming more powerful in pushing your base, you need fast teleport to save your Ancient.
Also, this item will give you 1 free slot that is saved for Teleport Scroll if you don't have this Boots

GOOD ALLIES
1. Supportive Heroes
(Example: Shadow Shaman, Crystal Maiden, Vengeful Spirit)

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

2. Another Chaotic Hero
(Example: Invoker, Omniknight, Venomancer)

 They are all have chaotic spells that will really helps you to deal a massive combo for the teamfight. Like
Invoker: Have many spells and high damage AoE spells
Omniknight: Gives physical immunity for the teamfight
Venomancer: Have a very strong ultimate that deal lots of damage per second

BAD ENEMIES

1. AoE Spells

(Example: Tiny, Earthshaker, Medusa)

 They have aoe spells that will destroys your illusions easily

2. Axe

Axe deal melee AoE damage that triggered with each attack. You are a perfect example on waht will trigger Axe's Counter Helix. And your illusion will suffer the most.

FANART

Dota 2 - Ancient Apparition Build Guide

BIO
Kaldr, the Ancient Apparition, is an image projected from outside time. He springs from the cold, infinite void that both predates the universe and awaits its end. Kaldr is, Kaldr was, Kaldr shall be...and what we perceive, powerful as it appears to us, is but the faintest faded echo of the true, eternal Kaldr. Some believe that as the cosmos ages and approaches its final moments, the brightness and power of Kaldr will also intensify--that the Ancient Apparition will grow younger and stronger as eternity's end draws nigh. His grip of ice will bring all matter to a stop, his image will cast a light too terrible to behold. An Apparition no longer! 

INTRODUCTION
Ancient Apparition is a supportive-nuker hero that can helps the team to win teamfights with his spells. He has global spell that makes him can help his teammates that are far away from his position. He can control the lane, mid, or other lane quite easy. He has cold feet that can harass enemies he face with a mighty damage in the early game. He have a slower abilities for an area that will helps team to chase enemies.

ROLE

Ranged - Support - Disabler

STATS

LEVEL	1	15	25
HIT POINTS	492	864	1,510	SIGHT RANGE	1800 / 1400
MANA	325	798	1,396	ATTACK RANGE	600
DAMAGE	44-54	80-90	126-136	MISSILE SPEED	1250
ARMOR	2	6	12

ABILITIES

1. Cold Feet

Places a frozen hex on an enemy unit that deals damage over time, but can be dispelled by moving away from the initial cast point. If the enemy unit doesn't move outside of the given range, it will be stunned and frozen in place after 4 seconds.

MANA COST: 150/150/150/150	COOLDOWN: 15/13/11/9
ABILITY: UNIT TARGET	AFFECTS: ENEMY UNITS
DAMAGE: MAGICAL	DAMAGE OVER TIME: 37.5 / 50 / 62.5 / 75
BREAK DISTANCE: 740 / 740 / 740 / 740	STUN DURATION: 1.25 / 2 / 2.75 / 3.5

Kaldr's presence draws those around him into a frozen void, threatening to lock them in an icy prison for eternity.
Makes you can freeze your opponent can't move away 740 range from his location where he got this skill from you. This skill also deal some dagame per second. A very nice single targetted skill to chase enemy. He will be frozen so you can attack him easily.
If you have stunner or slower friends, they can helps you to make opponent can't move farther than 740 range and automatically get frozen. Very good to kill a single target.

2. Ice Vortex

Creates a vortex of icy energy that slows movement speed and increases magic damage done in its range. Lasts 12 seconds.

MANA COST: 80/90/100/110	COOLDOWN: 6
ABILITY: POINT TARGET	RADIUS: 275 / 275 / 275 / 275
SLOW: 18% / 22% / 26% / 30%	DECREASE RESIST: 10% / 15% / 20% / 25%

Frozen, caustic winds are at the whim of Kaldr, chilling the field of battle.
Makes a circle that can slow down any enemy that move into it. Will be good to block enemy with this skill and make him move through this circle because he can only run into this skill if he don't want to be killed by  your team, and be slowed. He then have his magic resistance reduced so he will feel more magical damage for every magic he receive.
Makes your 1st skill Chilling Touch have more chance to freeze enemy. Because he will have a hard time to move for 740 range.

3. Chilling Touch

A frigid gust enchants allied heroes, granting them bonus magical damage for a given number of physical attacks, while slowing their attack speed slightly. Lasts 30 seconds.

MANA COST: 140/140/140/140	COOLDOWN: 50/46/42/38
ABILITY: POINT TARGET	DAMAGE: MAGICAL
RADIUS: 525	MAX ATTACKS: 3 / 4 / 5 / 6
DAMAGE: 50 / 60 / 70 / 80	ATTACK SPEED: 15% / 15% / 15% / 15%

The Ancient Apparition's eternal knowledge brings a frigid enchantment to his allies.
Gives a magical damage to a normal attack, with the cost of attack speed. This skill area is high so if 5 of your teams groups together in an area, all will receive it's buff. Useful in a teamfight where the additional damage will be received from all members, and will deal lots of damages  to enemy's team. The bonus damage will be increased again from your 2nd skill, Ice Vortex if there are enemies in the AoE of the Vortex.

4. Ice Blast

An explosive ball of icy hail that can be used to strike targets anywhere on the map. On first use, Kaldr launches a tracer towards the targeted location. The second use marks the current location of the blast, upon which the actual projectile is launched - the greater the distance, the larger the radius affected. It deals damage to enemy units and applies a frostbite curse to units in and around the area that prevents regeneration or healing. Frostbitten units will take minor damage over time; if the units drop below a certain percentage of hitpoints, they'll instantly shatter.

MANA COST: 100/125/150	COOLDOWN: 45
ABILITY: POINT TARGET	DAMAGE: MAGICAL
DAMAGE: 250 / 350 / 450	FROSTBITE DURATION: 8 / 9 / 10
FROSTBITE DAMAGE: 12.5 / 20 / 32	HITPOINTS FOR KILL: 10% / 11% / 12%

Ice storms from ages past flow through Kaldr's frosty limbs, crashing into the world and turning its inhabitants into monuments to his eternal power.
This is your main skill for nuking enemies in the game. This skill gives some magical damage to enemies in it's blast. Will instantly kill enemies below 10,11, or 12% HP, based on this skill level. This is considered a global skill. You can cast this from far away, you can cast this from another lane or anywhere in the map. This skill is rather difficult to knock the enemies. You will cast the tracer first, it's a ball that run straight to the selected area, you can cast stop everywhere between you and your target, its a straight line, and the after you click to stop the tracer, you will cast the next ball that will explode in the place you stopped the first ball. , If you clicked the wrong position to stop the tracer, it will miss the target, your enemy may have just run away from their previous position and you will waste 1 skill. But don;t worry if you miss this skill, the cooldown is quite low, 45 second for an ultimate, you can cast it again in 45 second, its not long time in DotA.

Release

Releases the ice blast early at its current location.

COOLDOWN: 1

ABILITY: NO TARGET

Release the ball that will explode in the area where you clicked to stop the tracer.


SKILLBUILD

Level 1: Cold Feet
Level 2: Chilling Touch
Level 3: Cold Feet
Level 4: Ice Vortex
Level 5: Cold Feet
Level 6: Ice Blast
Level 7: Cold Feet
Level 8: Ice Vortex
Level 9 : Ice Vortex
Level 10: Ice Vortex
Level 11: Ice Blast
Level 12: Chilling Touch
Level 13: Chilling Touch
Level 14: Chilling Touch
Level 15: Stats
Level 16: Ice Blast
Level 17-25: Stats

Why maxed Cold Feet first? This is your main nuke in early mid game, useful for harassing enemy in lane and will helps in chasing enemy.

Chilling Touch or Ice Vortex? Chilling Touch in early game will helps you for easier last hitting and also helps you in harassing enemy, I recommed take 1 level in early game. Ice Vortex will be needed to slow down enemy and makes your team can kill your target, good for mid game ganking activities, I recommend you to maxed this before chilling touch for the preparation of mid game ganking activities. And Chilling Touch have a high manacost so you can't cast this frequently in early game. In late game Chilling touch will helps team to get additional damage in a teamfight.

STRATEGY
Early Game
You can take any lane you want. AA can also become a decent solo mid player, if you want to be a solo mid player, it is good for you. Before laning phase, I recommend you to block the creeps. This will make you can attack from uphill and enemies will forced to laning from downhill. Downhill is not favorable because it will makes your attack to miss! more. If you choose to lane in top or bot, you should help your carry players with denying the creeps, don't last hitting. You should harass opponent using Cold Feet and makes him unfomfortable in last hitting. You can also hunt for firstblood using Cold Feet, this skill have a decent damage in early game.

Mid Game
In mid game, you should participate in ganking activities. You have Cold Feet to freeze the enemy and Ice Vortex to helps you with a slowing abilities and increasing magical damage. Your friends that have stun or slow will makes your Cold Feet to can Freeze the enemy because he ca't move more than 740 range.
You should also use your ultimate to deal damages to enemy you want to kill. This skill have a nice area damage that can kill enemies. If you are far away from the enemy, you can use your ultimate Ice Blast to helps your friends.This skill will deal dmages and helps your friend to get some kill. You need the precision in clicking stop of the Ice Blast, so it will damages to enemy you want and not exploding before it reach the enemy.

Late Game
In late game you should full participate in teamfights. You should cast Chilling Touch while you and friends are grouping before the teamfight. That will makes your friends get additional damage for their attacks. Very good because the damage accumulation will be so high. And the magical damage will be amplified too because of Ice Vortex. Cast Ice Vortex in the crowds of enemies.
Also use Cold Feet to 1 target, and make him should move 740 away from his original position, maybe that can makes him should go out of combat.
And the most important, don't forget to cast your ultimate Ice Blast, and blast it to the middle of enemies.
Maybe you already have some supportive items like Guinsoo Schyte of Vyse ofr Mekansm, use all you have and make sure you give enough support to your teammates. Happy icing!

ITEM BUILD
1. Arcane Boots
Total cost: 1450
Recipe: Boots of Speed + Energy Booster

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. Force Staff
Total cost: 2350
Recipe: Staff of Wizardy + Ring of Regen + Recipe

Active: Force - Pushes any target unit 600 units in the direction it is facing. Double click to self-cast. + 10 Intelligence    + 3 HP Regeneration Manacost: 25    Cooldown: 20

Why Force Staff? ForceStaff is useful on many purposes, you can initiate a teamfight with ForceStaff, or you can save somebody that run from enemies, or you can save yourself.

3. Mekansm
Total cost: 2306
Recipe: Headress + Buckler + Recipe

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

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.

5.  Schyte of Vyse
Total cost: 5675
Recipe: Mystic Staff + Ultimate Orb + Void Stone

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. You are considered a support, and this item is one of the best supportive items you can get. Or  you can use this to defend against somebody.

GOOD ALLIES
1. Venomancer

His ultimake makes enemis in a very low HP but it can't kill enemies, it will be capped at 1 HP. That's your job to finish the enemies. Use your ultimate and makes opponents to shatter below 12% HP.
You also have slower and an amplifier for magical damage, Ice Vortex, that makes Venomancer's poison to slow more and deal more damage.

2. Carries
(Example: Magine, Void, Luna)

Carries should be happy to receive your helps in a teamfight, and they should the right click and use all their skills to the enemies.