Royal Champion

+3: Royal Champion becomes a 50/50 human champion with reach that has protection from all damage and is still a planeswalker until end of turn.
-6: The human champion gets +30+30 each time you do this, and you can choose 1 more target for the 3rd ability.
-12: Choose 2 creatures opponent controls that aren't dark troops, troops, or the Townhall. Destroy them. Royal Champion regains 5 loyalty.