Yeetus of Meletis

If your devotion to red, black or green is less than
5, Yeetus of Meletis isn't a creature.
Whenever a creature enters the battlefield under
your control, you may sacrifice that creature. If
you do, add {x}, where x is the mana cost of that creature.
{2}{t}, Sacrifice a creature: Yeetus of Meletis deals damage equal to the sacrificed creature's power to target permanent or player.