This ingenious loop turns Earthcraft and Bloodflow Connoisseur into a relentless sacrifice engine for Dargo, the Shipwrecker. Earthcraft cleverly exploits the fact that Dargo is an untapped creature the moment it hits the battlefield, allowing you to tap your freshly cast commander to untap a basic land for mana. From there, Bloodflow Connoisseur steps in to devour Dargo as a sacrifice, sending your commander back to the command zone so it can immediately be recast for a mere single red mana.