Lich's Feast

If you have 20 or more life, Lich's Feast can't be countered.
Target player loses X life and you gain X life, where X is the greatest power among creatures you control. If X is 4 or greater, destroy up to one target creature that player controls.
"You soul will be a meager feast, mortal, so I shall take your comrades first."
- Zul Ashur, Lich Lord.