ABILITY:Auto-Cast, Unit Target
PIERCES SPELL IMMUNITY:No
DISPELLABLE:Cannot be dispelled
Adds extra pure damage to Outworld Devourer's attacks, based on his remaining mana pool. Steals intelligence for 80.0 seconds per hit when attacking an enemy hero. Arcane Orb damage splashes in a small area.
The damage is calculated after the mana cost is spent.