Issei Hyoudou (Pre-S2)

+2: Add 1 loyalty to each other red and/or black planeswalker you control
-X: Creatures you control each get +X/+0 and first strike until end of turn
-15: Creatures you don't control loase all abilities and become 0/1 humans; creatures you control gain deathtouch and indestructible until end of turn