Commodore Guff

+1: Until end of turn, creatures have: Whenever this creature attacks, choose a creature type, create a 1/1 creature token of that type.
-3: You get an emblem with, at the beginning of your end step, if you have 7 or more cards in your hand, create a 2/2 shapeshifter with changeling.
-10: You get an emblem with, at the beginning of your end step, choose a creature type, create a 15/15 creature token of that type.