Bibble, Mythic Mage

+1: Search your library for and Unsummon, reveal it, put it into your hand, then shuffle your library
-2: Summon a 1/1 token creature. It gets +1/+1 for every Unsummon in exile
-4: You get an emblem with "You may play any Unsummon from your graveyard, putting it into exile"