Ephemerate by paying ({W} magic symbol) , targeting
Dockside Extortionist.
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.
Repeat from step 2.
Results
Infinite colored mana.
Infinite ETB.
Infinite LTB.
Infinite magecraft triggers.
Infinite storm count.
Infinite Treasure tokens.
Metadata
In 33 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Not Legal (Bracket N/A).