The Highground

Target creature you control gets +X/+0 and gains indestructible, first strike, deathtouch, and reach, it then deals damage equal to its power to up to 3 target creatures and 3 damage to each of those creatures' controllers.

If X is 5 or more, when a creature an opponent controls were to die this turn, exile it and return it
to the battlefield with 2 +1/+1 counters on it under target player's control.