Holding priority, cast Reiterate with buyback by paying ({4} magic symbol) ({R} magic symbol) ({R} magic symbol) , creating a copy of Emphemerate.
Resolve the Emphemerate copy, blinking Dockside Extortionist, creating at least seven Treasure tokens.
Holding priority, activate six Treasure tokens by tapping and sacrificing those, adding ({R} magic symbol) ({R} magic symbol) and four mana of any color.