Erik, Champion of the Pit

+1: Target player discards a card. If this planeswalker has more than 8 loyalty, target creature you control fights target creature you don't control
0: Erik, Champion of the Pit deals damage equal to its loyalty to target creature. That creature deals damage equal to its power to Erik.
-9: Erik deals damage equal to its loyalty to each creature you don't control. Then, draw a card for each creature on the battlefield.