Capsize for its buyback cost by paying ({4} magic symbol) ({U} magic symbol) ({U} magic symbol) , returning
Dockside Extortionist to your hand.
Cast
Dockside Extortionist for ({1} magic symbol) ({R} magic symbol) .
Dockside Extortionist enters the battlefield, creating a number of Treasure tokens equal to the number of artifacts and enchantments your opponent control.
Activate eight of the Treasure tokens by tapping and sacrificing them, adding ({5} magic symbol) ({U} magic symbol) ({U} magic symbol) ({R} magic symbol) .