Eiliyaris, Unbound

+2: When you cast your next instant or sorcery spell this turn, copy that spell. You must choose new targets for the copy.
-1: Flip a coin for each creature target opponent controls. If you win the flip, that creature takes 2 damage and cannot block this turn.
-10: Flip a coin for each land you control. If you win the flip, take an extra turn after this one. If you lose the flip, take 2 damage.