Dethrone

Target creature you don't control loses all abilities and becomes a black Human with base power and toughness 0/1 until end of turn. Then, put that creature into it's controller's graveyard.
"You don't know what I do for mankind. I truly was a god-- your god-- even if you couldn't see it. By killing me, you have doomed yourselves."
- The Tyrant of Lissea, last words.