When Dockside Extortionist enters the battlefield, it triggers, creating at least four Treasure tokens.
Activate two Treasure tokens by tapping and sacrificing them, adding ({1} magic symbol) ({B} magic symbol) .
Activate Thermopod's second ability by sacrificing Dockside Extortionist, adding ({R} magic symbol) .
Activate Ruthless Technomancer by paying ({2} magic symbol) ({B} magic symbol) and sacrificing a Treasure token, returning Dockside Extortionist from your graveyard to the battlefield.