King of dark woods

When this creature enters the battle field choose one.
- If you control a creature with power 6 or greater
each opponent sacrifices 3 permanents.
- If you control a creature with power 12 or
greater gain 12 life and your opponent loses 12 life.
- If you control a creature with power 20 or greater
and no artifacts and that creature has no counters
you win the game.