Narek, Lord of the Forest

Trample, Flying, Lifelink, Indestructible.
Creatures you control get +1/+1 if all creatures
target opponent controls are tapped, or +3/+3
if they are all untapped.
When Narek enters the battlefield, drain target opponents for 6 life. Their creatures get -3/-3
and your creatures get +2/+2 until end of turn.