Demon King

When Demon King enters the battle field it does 7/7 to all the {r}s and does 9/9 to all the {u}s,{b}s,{g}s and {w}s. Spell also do no effect to Demon King. Demon King doesn't get stage fright so he could attack the moment he gets summoned. When he gets summoned he destroyers every single Planeswalkers