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. However, missing an attack does not grant lifesteal and it is useful to purchase a Monkey King Bar if an opponent has evasion.

Additional Information
One Satanic grants a total of 475 health, 0.75 health regeneration, 5 armor and 20 (45 for strength heroes) attack damage.