Masayoshi Shido

+2: Deal damage to a Target creature equal to Half their player's current health. This damage can kill Immortals.
-10: All Enemy Cards become taped if possible, then, Untap masayoshi shido, and 3rd Ability's cost is reduced to zero
-20: deal 10 damage to all Creatures and Planeswalkers Then, deal 10 damage to all enemies. If a Planeswalker was defeated, do +5 damage