When Dockside Extortionist enters the battlefield, it and Blasting Station trigger.
Resolve the Blasting Station trigger, untapping it.
Resolve the Dockside Extortionist trigger, creating at least two Treasure artifact tokens.
Activate two Treasures by tapping and sacrificing them, adding 1.
Activate Blasting Station by tapping and sacrificing Dockside Extortionist.
When Dockside Extortionist dies, Enduring Renewal triggers, returning Dockside Extortionist to your hand from your graveyard.
Resolve the Blasting Station ability, dealing 1 damage to any target.
Repeat.
If opponents control three or more artifacts and/or enchantments, this combo nets infinite Treasure tokens and colored mana.
This loop transforms the humble goblin into an infinite artillery shell, provided your opponents have at least three artifacts or enchantments in play to feed Dockside Extortionist's initial treasure haul. Blasting Station serves as both the sacrifice outlet and the win condition, firing off a point of damage and untapping itself every time a creature enters the battlefield. Meanwhile, Enduring Renewal quietly alters the rules of the graveyard by plucking Dockside Extortionist straight back to your hand the moment it hits the dirt. You simply use the mana generated by the treasures to recast the goblin, fueling an endless cycle of sacrifice, retrieval, and fiery damage.