Buster Brown

+1: Add {2} to your mana pool. Mana gained by Buster Brown doesn't empty from your mana pool until it is used to cast a spell or activate an ability.
-2: Choose one, two, or three target permanents you both control and own, and exile them. Put a Dude Counter on all cards exiled this way.
-6: Return all cards with Dude counters on them to the battlefield. Activate this ability only on your turn. Empty any mana gained with Buster Brown.