Jake, Avatar of Whim

+2: Each player draws a card, then discards a card at random.
-2: Target permanent is shuffled into the library, then reveals the top card of their library. If it's a permanent, put it onto the field tapped
-10: Gain an emblem with "Whenever a player casts a spell, flip a coin. If you win the flip, counter target spell. If you lose the flip, draw a card.