Imperfect Minerva

+1: Until the beginning of your next turn, whenever a creature deals combat damage to Imperfect Minerva, destroy that creature.
+1: Look at the top three cards of your library. Put one of them into your hand, then put the rest back on top of your library in any order.
-8: You get an emblem with "Whenever you cast a spell from your library for the first time each turn, that spell gains cascade."