Frostine, Ice Queen

+2: Turn up to 3 lands into 2/2 Merman tokens with haste. They are still lands.
+4: Frostine, Ice Queen becomes a 5/5 legendary creature with Indestructible until next turn.
-9: Reveal top 10 cards of target opponents library, put all cards that are not Instants into their graveyard. Draw 3 cards.