Desolator

The Desolator is an Item purchasable at the Main Shop, under Artifacts.

Tips

 * The Corruption debuff works against buildings, making it a great pushing tool. Split-pushing heroes can benefit a lot from it, allowing them to take towers down much quicker.
 * The Corruption debuff lasts quite long, so sometimes it is better to get the debuff on multiple enemies, instead of focusing only one target in team fights.

Trivia

 * In DotA1, this item's full name is "Stygian Desolator", a reference to the game Anarchy Online.