Katsuki The Annihilator

{s}When Katsuki enters the battlefield destroy 5 permanents target player controls. {t} Add {u}{b}{r} To Your Mana Pool. {5} Katsuki destroys all artifacts target player controls. {t}{7} Target player loses 12 life. {10}{u}{b}{r} Exile all permanents target opponent controls If there are 30 or more permanents in all graveyards you win the game.