Aeyane Zerd, Underworld Mage

Deathtouch
When Aeyane Zerd, Underworld Mage enters the battlefield, each opponent sacrifices a creature. Then, you gain life equal to the sum of the sacrificed creatures' toughness.
Sacrifice an artifact: Aeyane Zerd, Underworld Mage gets +2/+2 and gains lifelink and indestructible until the end of the turn.