Sloth

When Sloth enters the battlefield tap all creatures, they don't untap during its controllers next untap step
Whenever a creature enters the battlefield choose one
•tap it, you gain life equal to the power and toughness combined.
•you loss life equal to its power and toughness combined you draw a card.
•destroy it all creatures its owner controls get +X/+X equal to its power and toughness combined.