Merin

: The First time you cast a noncreature spell each turn Journey once then target creature you control cant be blocked this turn if it attacks alone
+2: Create a */* Elemental creature token with "This cards power and toughness are each equal to the number of cards you own in Exile"
-10: Merin deals X damage to each creature you don't control and each other player, where X is the greatest power among creatures you control.