Dota 2 - Slark Build Guide

BIO
Little known to the inhabitants of the dry world, Dark Reef is a sunken prison where the worst of the sea-bred are sent for crimes against their fellows. It is a razor barbed warren full of murderous slithereen, treacherous Deep Ones, sociopathic meranths. In this dim labyrinth, patrolled by eels and guarded by enormous anemones, only the vicious survive. Pitched into Dark Reef for crimes unknown, Slark spent half a lifetime without kin or kindness, trusting no one, surviving through a combination of stealth and ruthlessness, keeping his thoughts and his plans to himself. When the infamous Dark Reef Dozen plotted their ill-fated breakout, they kept their plans a perfect secret, murdering anyone who could have put the pieces together--but somehow Slark discovered their scheme and made a place for himself in it. Ten of the Dozen died in the escape attempt, and two were captured, hauled back to Dark Reef, then executed for the entertainment of their fellow inmates. But Slark, the unsung thirteenth, used the commotion as cover and slipped away, never to be caught. Now a furtive resident of the carnivorous mangrove scrub that grips the southern reach of Shadeshore, Slark remains the only successful escapee from Dark Reef.

INTRODUCTION
Slark is a hero that move very fast. Slark is the real runner in DotA. If you don't have a decent chasing skill, then you can't never reach him.  Not just fast movement speed, he also have a jump that can faster his movement for chasing a target or for escaping.Slark also can steal the opponent's stats with each attack and make him stronger while making his opponent weaker. He is considered a carry that will be stronger for late game teamfights.

PROS	CONS
A decent chaser	Kinda bad against tanky heroes
Fast HP regeneration
Enemy cant attack while on his ultimate
Insta lock > kill, against squishy heroes
Can removes buffs
Fast movement and also can jump

ROLE

Melee - Carry - Escape

STATS

LEVEL	1	15	25
HIT POINTS	549	1,028	1,750	SIGHT RANGE	1800 / 800
MANA	208	554	1,061	ATTACK RANGE	128
DAMAGE	54-62	75-83	110-118	MISSILE SPEED	N/A
ARMOR	2	5	10

ABILITIES
1. Dark Pact

After a short delay, Slark sacrifices some of his life blood, purging negative debuffs and dealing damage to enemy units around him and to himself. Slark only takes 50% of the damage.

MANA COST: 55/50/45/40	COOLDOWN: 9/8/7/6
ABILITY: NO TARGET	DAMAGE: MAGICAL
DELAY: 1.5	RADIUS: 325
DAMAGE: 75 / 150 / 225 / 300

This is your nuking ability. Deal some damages to nearby opponents around you. A good nuking skill for farming and harassing on early-mid game. The damage is considered high for early game and you can hurt squishy heroes with it.
Farming with this skill, you will deal AoE damage to enemy's creeps, this will faster your farms.
And for nuking heroes, you need to be near your target and damaging him.
This skill also removes buffs such as poison, track or if you already activated this skill and then get stunned, the stun will be removed immediately.

2. Pounce

Slark leaps forward, grabbing the first hero he connects with. That unit takes damage and is leashed to Slark, and can only move a limited distance away from Slark's landing position.

MANA COST: 75/75/75/75	COOLDOWN: 20/16/12/8
ABILITY: NO TARGET	DAMAGE: MAGICAL
DISTANCE: 700	POUNCE DAMAGE: 70 / 140 / 210 / 280
LEASH DURATION: 3.5	LEASH RADIUS: 325

This is your jumping skill. With this skill, you will catch the enemy and also can be use to escape from the enemies. 1 enemy in front of your jump will be leashed and cannot run away, and that's your chance to harass him.
This skill also deal some damage that useful to harass your target.

3. Essence Shift

Slark steals the life essence of enemy heroes with his attacks, draining each of their attributes and converting them to bonus Agility.

COOLDOWN: 0.40/0.35/0.30/0.25	ABILITY: PASSIVE
AGILITY GAINED: 3	ALL ATTRIBUTE LOSS: 1
DURATION: 15 / 30 / 60 / 120

Steal enemy's stats with each attack. On the late game, this skill is so fierce, because you will get so many stats quickly and make your enemy hopeless.
Like you get 30 Agility in just a few sec or something, and this stats boost will really increase your damage and attack speed so you can carry your team into victory. And your enemy will have his stats reduced and become weak and squishy.

4. Shadow Dance

When used, Slark hides himself in a cloud of shadows, becoming invisible (attacking, casting spells, and using items do not reveal Slark). Passively, when not visible to the enemy team, Slark gains bonus movement speed and health regeneration.

MANA COST: 120/120/120	COOLDOWN: 25
ABILITY: NO TARGET	DURATION: 5.5 / 5.5 / 5.5
BONUS MOVEMENT SPEED: 30% / 35% / 40%	HEALTH GAINED PER SECOND: 3% / 5% / 7%

This is your main skill. With this skill, you can sneak attack while your body is surrounded by smoke. And if your enemy don't have true sight or AoE skill, they cannot attack you so you can act freely.
With the additional movement speed, your mobility will increase so you can chase or escape from danger quite easy.
You also gain a massive HP regeneration. You can fulfill your HP quickly using this skill.

SKILLBUILD

Level 1: Pounce
Level 2: Dark Pact
Level 3: Dark Pact
Level 4: Essence Shift
Level 5: Dark Pact
Level 6: Shadow Dance
Level 7: Dark Pact
Level 8: Pounce
Level 9 : Pounce
Level 10: Pounce
Level 11: Shadow Dance
Level 12: Essence Shift
Level 13: Essence Shift
Level 14: Essence Shift
Level 15: Stats
Level 16: Shadow Dance
Level 17-25: Stats

Why take Pounce for level 1? You need Pounce to escape if enemy wants to get firstblood by killing you. Jump out!!
Or this can leash your enemy and your team can get the firstblood.

Why maxed Dark Pact first?  This is your main nuke, you will need this for ganking, farming, and killing or early mid game. This skill also removes buffs.

Why maxed Pounce before Essence Shift?  The rule of DotA: Nukes for early game, physical damage for the late game.  Pounce is a nuke that will  deal more damage on early-mid game. And Pounce cooldown the lower the better for mid game because you need the mobility from this jumping skill.And Essence Shift is for physical attacks that will be the main source of damages for mid-late game.

STRATEGY
Early Game
On early fame, because you are the carry and needs lots of farm for buying the good items, so you need to farm as much as you can. Try to last hit every creeps on the lane, maybe Quelling Blade will helps you.
Always be careful of ranged or nuker heroes harassment on early game, they are like to harass you because you are squishy and will be dangerous on the late game if not being shut down on early game.
If your team want to get the firstblood, you should use Pounce to leash the enemy and attack him and nuke him using Death Pact, and also your friend will deal the damage too.

Mid Game
On mid game you should already learned Shadow Walk. With this skill, you will get very high mobility and can escape or chase enemies easily. Not just that, you also become invisible but still can attack the enemy. This is your main skill for the game. Always use it in every situation on the match. Mobility is what you need to gank, farm, escape, or killing.
In the mid game, if you want to gank, use the Pounce and leash your target and make him cannot move. Then you can attack him easily and also nuke him using Death Pact. Your attack speed is considered low on early game, maybe you need mask of madness to increase your attack speed, this item is so good because it gives attack speed, lifesteal, and also movement speed, that's all what you need to carry the game.
You can also use Death Pact to avoid being stunned because the stun will be removed immediately.

Late Game
On late game, what you need to do is: Be brave and focus attack on single target and not attacking the creeps. Focus is the first thing to remember as a carry, if you are not focus and attack the creeps, you will waste your time.
In this stage of the game, you should already have high attack speed to destroy your opponents. With the high attack speed, you will be able to gain maximum agility and stealing many stats from your enemy. With this, you will be so strong and can carry your team bravely.
Pounce is still useful here, with this skill, you will leash a target and make him easy to attack. And Death Pact can be useful to remove all buffs and make you still healthy for the fight.
If you already have Bkb, use that! This item will provide maximum defense from magical attacks, really helps you to survive in the hard teamfight. And also if you have the Battlefury you will have cleaving attack to demolish all your opponents.

ITEMBUILD
1. Starting Item
Your goal here is to find as many last hits as possible. No need to hurry in killing the enemy,

Quelling Blade You need this item for easier last hitting. You need lots of creep kills on early game.	Stout Shield Blocks enemy's damage on early game. Pretty effective to get last hits under your tower.	Tango Gives you some additional regeneration on early game. So you can keep farming safely.
MELEE BONUS DAMAGE: 32% Active: Destroy Tree - Destroy a target tree.	Passive: Damage Block MELEE BLOCK: 20  BLOCK CHANCE: 60%	Consume a tree to restore HP over time. Comes with 4 charges. DURATION: 16 HEALTH RESTORED: 115

2. Mid Game Item
Your goal in mid game is finding kills. You'll be doing so by using good items in initiating and chasing.

Power Threads +attack speed and tankiness from STR-Thread. If you need to destroy tower quickly you can switch into AGI-Thread. And for instant mana you can switch into INT-Thread	Orb of Venom A slooowing attack that makes your enemy can't run away from you. This item will makes you can constantly stealing stats from your enemy	Blink Dagger A perfect item that makes you can jump and doing combo to your target. After jumping, immediately use Pounce to lock your target. Then use death pact and  then attack!
+ 55 Movement Speed + 8 Selected Attribute + 30 Attack Speed	Passive: Slower SLOW: 12% DURATION: 4 POISON DAMAGE: 3	If damage is taken from an enemy hero, dagger cannot be used for 3 seconds. Cooldown12

3. Late Game Item
Your goal in late game is to capitalize all you've got from early-mid game. So now you can ready for every big teamfight and become confident that you can take down all enemies.

Eye of Skadi Gives a massive slower for your enemy's movement speed and attack speed. Will makes you can kill your target easily.	Black King Bar A nice item to protect yourself against any enemy's magic. This is a must to get item for every carry.	Butterfly Gives a massive amount of attack speed and evasion so youll be so much more stronger thatn your opponent.
Passive: Cold Attack MOVE SLOW: 30% ATTACK SLOW: 20% + 25 All Attributes + 200 Health    + 150 Mana	+ 10 Strength + 24 Damage     DURATION: 10/9/8/7/6/5   Cooldown: 80	+ 30 Agility         + 30 Damage + 35% Evasion     + 30 Attack Speed

And don't forget this for the late game
4. 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'll need a fast teleport to save your Throne.

ALTERNATIVE ITEM
a. Mask of Madness
Total Cost: 1900
Recipe: Morbid Mask/Mask of Death(Dota1) +Recipe

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.

b. Basher
Total cost:: 2950
Recipe: Javelin + Belt of Giant Strength + Recipe

>

+ 40 Damage     +6 Strength      MELEE CHANCE: 25%      RANGED CHANCE: 10% Cooldown: 2

Why Basher? Gives you the ability to give stun status to your enemy.  Stunned enemy is a piece of cake for you, make you easyly kill him. Upgrade this on late game into Abyssal Blade. With Abyssal Blade, you will have an active 2 seconds stun to disable your foe.

c. Desolator
Total cost: 5675
Recipe: 2x Mithrill Hammer + Recipe

Passive: Corruption - Your attacks reduce target's armor. Desolator is a Unique Attack Modifier, and does not stack with other Unique Attack Modifiers. + 60 Damage     ARMOR REDUCTION: 6

Why Desolator? Increase every damage for your target because this item reduces enemy's armor.

GOOD ALLIES

a. 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

b. Synergy Hero - Armor Reductor
(Example: Slardar, Shadow Fiend, Vengeful Spirit)

They have skill that reduce enemy's armor, very synergy with your quick-kill style because you will be able to quick-kill your target easily because your damage will be amplified.

BAD ENEMIES
a. High Instant Damage
(Example: Lina, Lion, Tiny)

They are all have deathly instant damage. And because you are squishy, you can instantly die, beware of them.

Dota 2 - Night Stalker Build Guide

BIO
Of the Night Stalker, there is no history-only stories. There are ancient tales woven into the lore of every race and every culture, of an impossible time before sunlight and daytime, when night reigned alone and the world was covered with the creatures of darkness-creatures like Balanar the Night Stalker.

It is said that on the dawn of the First Day, all the night creatures perished. All, that is, save one. Evil's embodiment, Night Stalker delights in his malevolence. He created the primal role of the Night Terror, the Boogeyman, and as long as there have been younglings, his is the specter summoned to terrify them. This is a role he relishes-nor are these empty theatrics. He does indeed stalk the unwary, the defenseless, those who have strayed beyond the lighted paths or denied the warnings of their communities. Night Stalker serves as living proof that every child's worst nightmare....is true.

INTRODUCTION
He is one of the STR hero that can get kills easily on early-mid game. He have a powerful single target nuke and also have a mighty movement speed and attack speed. Oh and also don’t forget he also have a Silence that makes his enemy can’t escape. All of his skills are designed to make enemy can’t do anything while facing him. He can come from jungle easily and quickly, slowing the target, and also silencing the target. And then the target will move so slow and harassed by him until death, maybe death because his nuke, or his attacks.

PROS	CONS
Can easily solo killing a squishy hero	Low attack speed vs AGI carry on late game
High movement speed & attack speed at night	Doesn't have an AoE spell
High damage - Low cooldown nuke
Have a wide range vision at night

ROLE

Melee - Durable - Initiator - Chaser - Carry

STATS

LEVEL	1	15	25
HIT POINTS	587	1,332	2,244	SIGHT RANGE	1800 / 800
MANA	208	499	9	ATTACK RANGE	128
DAMAGE	57-61	96-100	144-148	MISSILE SPEED	N/A
ARMOR	6	10	16

ABILITIES
1. Void

Creates a damaging void that slows an enemy unit and deals damage. Void also mini-stuns, interrupting channeling abilities. The slowing effect lasts longer at night.

MANA COST: 80/90/100/110	COOLDOWN: 8
ABILITY: UNIT TARGET	AFFECTS: ENEMY UNITS
DAMAGE: MAGICAL	DAMAGE: 90 / 160 / 255 / 335
DAY DURATION: 2 / 2 / 2 / 2	NIGHT DURATION: 4 / 4 / 4 / 4
MOVE SLOW: 50% / 50% / 50% / 50%	ATTACK SLOW: 35% / 35% / 35% / 35%

Balanar creates a vortex of infinite night, tearing opponents violently into the eternal darkness that once was.
This is your main nuke. A single targetted - low cooldown nuke. You will spam this skill to a one unlucky target. On the early game, this skill is so painful for your enemy. You need to cast this immediately when it's off-cooldown. This way, your target cannot escape from you. Combined with your high movement speed (from your 3rd skill, and a silenced enemy (from your 2nd skill), you will kill your unlucky target easily.

2. Crippling Fear

Night Stalker horrifies the target enemy Hero, causing it to miss attacks and become silenced. The effect lasts longer at night.

MANA COST: 90/90/90/90	COOLDOWN: 12
ABILITY: UNIT TARGET	AFFECTS: ENEMY UNITS
DAY DURATION: 3 / 3 / 3 / 3	NIGHT DURATION: 5 / 6 / 7 / 8
DAY CHANCE TO MISS: 10% / 10% / 10% / 10%	NIGHT CHANCE TO MISS: 40% / 40% / 40% / 40%

A vision of the twisted maw of Balanar etches itself into the minds of the poor souls unlucky enough to cross his path.
Silence an enemy unit. This make you can attack your target comfortably without afraid of he will using his skills.

3. Hunter in the Night

Night Stalker is in his element at night, attacking and moving with great swiftness.

ABILITY: PASSIVE	MOVE SPEED: 20% / 25% / 30% / 35%
ATTACK SPEED: 30 / 45 / 60 / 75

The hunting prowess of Balanar improves as the night beckons.
With this, you become a very good chaser in Dota. You will gain lots of movement speed and also attack speed at night. So, if the day has turns into night, that;s your time to rock! Begin to roam around the map, and happily kill enemy's squishy hero. Start with your Silence, then Void, then just Right Click and silence again.

4. Darkness

Night Stalker smothers the sun and summons instant darkness, so that he might use his powers at their fullest. When used at night, it extends night time by Darkness' duration. Upgradable by Aghanim's Scepter.

MANA COST: 0/0/0	COOLDOWN: 180/150/120
ABILITY: NO TARGET	DURATION: 25 / 50 / 80

It is a humbling sight to see when the mightiest of warriors become afraid of the dark.
Because you will gain many advantages at night, this skill will be very useful for you. You will turn day into night for a certain period. In this skill duration, because of the natur of your abilities, you become more powerful, you get high movement speed, attack speed, vision, long Silence duration, and Long slow duration.

SKILLBUILD

Level 1: Void
Level 2: Hunter in the Night
Level 3: Void
Level 4: Crippling Fear
Level 5: Void
Level 6: Hunter in the Night   (Note: Here we doesn't take ultimate if it is still night time)
Level 7: Void
Level 8: Darkness
(Maybe here is the day is coming, so you need to take your Ultimate, or if it haven't day yet, you still can skip it)
Level 9 : Hunter in the Night
Level 10: Hunter in the Night
Level 11: Darkness
Level 12: Crippling Fear
Level 13: Crippling Fear
Level 14: Crippling Fear
Level 15: Stats
Level 16: Hunter in the Night
Level 17-25: Stats

Why maxed Void first?  This is your main nuke, you will need this for ganking and killing or early mid game. This skill have a high damage and also spammable. a very recommended skill.

Why maxed Hunter in the Night before Crippling Fear?  Crippling Fear level 1 is enough. Moreover, your attack speed and damage is needed to gank enemy on early-mid game. Recommended for you to take Hunter in the Night before Crippling Fear.

STRATEGY
Early Game
Balanar is a hero that get his real power at night. He should wait until day ends to operate and start ganking. On the first few minutes of the game, it is recommended for you to wait the night time with farming creeps calmly. At least, you should already have boots in the first night of the game.

Mid Game
Balanar is a carry-chaser hero that can easily get kills on early game. He mainly uses void and high movement speed to get some easy kills. You should maxed your Void first so you can spam it to get some easy kills on early mid game. Just use Void on a squishy hero and his Hp are already 60%, and after that he will be slowed, and you also have a Silence t make your target can’t do skills.  So he just can wait until his death. Just right click your hopeless target, and after your Void is off cooldown use it again to assure the kill.
After you already use lots of your mana, you need to go back to fountaain an refill your mana, you need mana mainly for spamming Void and get some easy kills.

Late Game
On late game, if you have Aghanim Scepter, you should lead your team through the fog of war. You have a very long distance of visibility that will helps team to scouts the fog area. You are Balanar, you become a beast at night, Lead your friend and if you accidentaly found someone in the fog of war, immediately cast Silence on him and your friends should come immediately to kill him. You have the potential of becoming a carry, maybe you can buy some carry items like Cuirass, Mkb etc.

ITEMBUILD
1. In early Game, I recommend you to buy Boots of Speed
Cost: 450

Flat movement speed bonuses from multiple pairs of boots do not stack. + 50 Movement Speed

Why Boots of Speed? You need to start killing from the first night, you need the movement speed to out run your enemy.

2. Bracer
Total Cost: 525
Recipe: Circlet + Gauntless of Strength

+ 6 Strength         + 3 Agility + 3 Intelligence    + 3 Damage

Bracer is good for survivability in early game. This will adds damage too.

Upgrade your shoes into a more powerful Boots:
3. 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.

? Item: 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? With Arcana Boots, you can fill your mana for your skill and spam Void whenever you want. This will makes you can get kill by relying on your Void on early game. You buy this with the cost of attack speed, or even damage if you prefer Phase Boots. But if you succeeded by getting lots of kills, then you can buy some nice items for the late game.
But this item will provoking your team to blame you because Power Threads is considered better from the community views.

For the sake of the team, buy:
4. Aghanim Scepter,

Passive: Ultimate Upgrade - Upgrades the ultimates of certain heroes. + 10 All Attributes   + 200 Health   + 150 Mana

Why Aghanim's Scepter? The radius of your Sight at Night will increase dramatically, this way, your team can roam and find a weak target and catch him.
Also make you can know enemy that will gank you so you can run before they arrive at your place.

Usually people buy this:
5. Black King Bar
Total cost:: 3900
Recipe: Ogre Axe, Mithril Hammer, Recipe

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

Why Black King Bar? It gives you survivability in a teamfight because you will get magic immunity during teamfight.

Now, what's next:
It is recommended for you to go full damage and attack speed so you may like this kind of items:
6. Battlefury
Total Cost: 225
Recipe: Broadsword, Claymore, Preserverance

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? It is your job to deal a damage to all of the enemy. This items gives you an AoE attack that will deal damage to all the enemy.

7. 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 also gives you +Aura for the team that is very important for late game,
it will increase your team's defense by a lot.
- Aura for the enemy:
Will make your enemy to suffer more from your teams damage.

8. 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 the 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 disabler friends.

And also don't forget about:
2 items that is "a must have" for late game:
9. Heart of Tarrasque
Total cost: 5500
Recipe: Reaver + Vitality Booster

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 Heart of Tarrasque? It helps you survive in hard late game teamfights. Who can survive, is the winner!

10. 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

And for the late game, for more survivability, you should buy this:
11. 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.

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. Ranged-Carries
(Example: Clinkz, Drow Ranger, Sniper, Nevermore, Weaver)

You need to combine your decent slowing ability with their damage. It will be so powerful to crush opponents. Your silence is also powerful and make them can attack enemy pleasantly.

ANNOYING ENEMY
1. Observer Ward

Why this item is becoming your most annoying enemy? If they place this in the vital spot where you will run to kill them, then they will know your presence and immediately retreat, it will very harm you.

2. Enemy that have lots of Hp and high survivability, and powerful that you will have a hard time solo killing them
(Example: Ursa, Centaur, Naix)

 Your damage maybe isn't enough to solo kill them, maybe if you want to solo kill heroes that have lots of HP like them, you can get killed, so be careful.

VIDEO SECTION
1. Dota Guide of Night Stalker

Watch this and learn to play using Balanar. A nice tutorial on how to kill people with Balanar.

2. Another Guide of Night Stalker 

If you want to play with this hero, nothing wrong with checking every guide on the internet.

FANART