How to counter Tusk in Dota 2

Tusk compresses shards of ice into a ball of frozen energy that damages all enemies it comes in contact with. When the ball reaches its target destination the shards are released, creating a barrier that lasts for 4 seconds.

Tusk begins rolling into a snowball. Allies within a 325 radius can also be added to the snowball by right-clicking on them, even while the snowball is moving. Once launched, any enemies caught in the snowball's path will be stunned and take damage. Each allied Hero in the snowball will add to its damage and stun duration.

Activate to temporarily apply a negative debuff aura around you, causing enemies that are attacked under it to take bonus physical damage and reduced movement speed. Lasts 6 seconds.

Tusk reaches out to tag an allied unit, pulling them closer. Once tagged, both Tusk and his tagged ally gain movement speed and armor. Can be put on alt-cast to only pull Tusk towards his ally with 50% reduced cast range.

Kicks the closest enemy unit in the drawn direction, stunning, damaging, and slowing them. Also deals damage to all heroes within 250 radius of its landing area. Cooldown is reduced by 50% if kicking a creep.

Tusk connects with his mighty Walrus Punch, a critical strike with bonus damage so powerful it launches its victim into the air.

Launch the snowball toward the target.

Passively slows the attack speed of all enemy heroes within a 350 unit radius.