Activate Bloodflow Connoisseur by sacrificing the Goblin, Orc or Army
When the Goblin, Orc or Army dies, The Great Goblin's second ability and Mortuary trigger.
Resolve the Mortuary trigger, putting the Goblin, Orc or Army onto the top of your library from your graveyard.
Resolve the Great Goblin trigger, exiling the Goblin, Orc or Army from the top of your library with the ability to play it until the end of your next turn.
Resolve the Bloodflow Connoisseur ability
Cast the Goblin, Orc or Army from exile by paying its mana cost.
Birgi triggers, adding
Repeat
This clever loop turns a modest sacrifice into a perpetual motion machine by weaponizing the graveyard and library in a continuous cycle. You feed a creature to Bloodflow Connoisseur, which prompts Mortuary to quietly intercept the dying creature and slide it right back onto the top of your library. From there, The Great Goblin swoops in to exile that same card, granting you permission to replay it while simultaneously draining your opponent's life total with every counter you place. Meanwhile, Birgi, God of Storytelling // Harnfel, Horn of Bounty acts as your economic engine, refunding your red mana investment with every single recasting so you can keep the loop spinning endlessly.