Witch Slayer
By: Newti

Skill Build
1 - Graveyard
2 - Power Drain
3 - Power Drain
4 - Graveyard
5 - Power Drain
6 - Silver Bullet
7 - Miniaturize
8 - Graveyard
9 - Graveyard
10 - Miniaturize
11 - Silver Bullet
12 - Miniaturize
13 - Miniaturize
14 - Power Drain
15 - Stats
16 - Silver Bullet
17 - Stats+

Justification / Modifications:
Witch Slayer allows for a couple of different builds. This one is my favorite tho. Get Power Drain to level 3 fast for very good harassment and utility.
Other builds include maxxing Graveyard at level 7 (Power Drain and Miniaturize each 1 Point) or even pure Graveyard and Miniaturize. With the listed build however you are never wrong.

Lane Starting Items:
Monkey Courier or Wards of Sight, 2x Runes of the Blight, 4x Minor Totem

Core:
Power Supply >> Steam Boots >> 1-2x Fortified Bracelet

Make sure to keep the Wards up.

After Core:
Astrolabe >> Portal Key >> Kuldra's Sheepstick

Witchslayer is a good carrier for Astrolabe due to his unlimited Mana pool. Portal Key for positioning or disable + escape is good on him.
And finally Sheepstick, the classic on every int hero.

Alternative Items:
Puzzlebox is of course an option if the enemy team has invis or is warding.
Staff of the Master is an option too if someone else is doing astrolabe.
Void Talisman when dealing with a lot of Shrunken Heads or Predators .

Information:
Roles: Babysitter, Nuker, Disabler
Prefered Lane: Any
Difficulty: 2 - Easy
Farming capabilities: 3 - Decent (due to Manadrain)
Item dependancy: 2 - Low
Power:
- Early Game / Lane Control: 4 - Strong (Good disable/harass, strong ult)
- Mid Game / Ganks: 4 - Strong
- Late Game / Team Fights: 3 - Medium (Always somewhat useful with 2 disables)

30-Seconds-Guide:
- Don't KS with Silver Bullet. You are a support hero / babysitter.
- Don't overwrite your disables. Don't cast miniaturize right after Graveyard, use them after eachother.
- Don't KS with Silver Bullet.
- Use Graveyard + Power Drain on heroes with a low mana pool in teamfights (for example Pestilence or Hammerstorm). It will almost empty their Manapool with one cast!
- Never KS with Silver Bullet, use it either early to get a fast kill or when the enemy is escaping. (Or of course when you are alone, duh.)