Blue Sun's Twilight | Dockside Extortionist | Swarm Intelligence

(and one other card)

Cast
Blue Sun's Twilight by paying ({5} magic symbol) ({U} magic symbol) ({U} magic symbol) , targeting
Salvager of Secrets.
Swarm Intelligence triggers, creating a copy of
Blue Sun's Twilight, targeting
Dockside Extortionist.
Resolve the copy of
Blue Sun's Twilight, creating a token copy of
Dockside Extortionist.
The
Dockside Extortionist token enters the battlefield, creating at least eight Treasure tokens.
Resolve the original
Blue Sun's Twilight from step 1, creating a token copy of
Salvager of Secrets.
The
Salvager of Secrets token enters the battlefield, returning
Blue Sun's Twilight from your graveyard to your hand.
Activate seven Treasure tokens by tapping and sacrificing them, adding ({5} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Repeat.
Once you have infinite mana, you may instead target
Salvager of Secrets and any other creature to get infinite copies of any creature on the battlefield.

WARNING: Combo contains cards that are banned in Commander