Satanic

The Satanic is a late game Item purchasable at the Main Shop, under Artifacts. However, it can only be completed with items from the Secret Shop. It grants the most lifesteal of any item in the game. The more damage per second the owner does, the more HP he gains, making it particularly efficient with an Agility hero. Because missing an attack doesn't grant lifesteal, it is useful to purchase a Monkey King Bar if an opponent has evasion.