Activate Cleaver Skaab by paying {3}, tapping it and sacrificing Dockside Extortionist.
Dockside Extortionist dies, triggering Cleaver Skaab, untapping Cleaver Skaab.
Resolve the Cleaver Skaab ability from step 1, creating two token copies of Dockside Extortionist.
The Dockside Extortionist tokens enter the battlefield, creating at least four Treasure tokens.
Activate three Treasure tokens by tapping and sacrificing them, adding {3}.
Repeat.

Infinite LTB

Infinite colored mana

Infinite creature tokens

Infinite death triggers

Infinite ETB

Infinite sacrifice triggers

Infinite Treasure tokens

Cleaver Skaab

Thornbite Staff

Dockside Extortionist

Maskwood Nexus

Xenograft

Arcane Adaptation

Conspiracy

Combos with "Cleaver Skaab"