When Astrid enters the battlefield, its first ability and Samwise Gamgee trigger.
Resolve the Astrid trigger, creating two Clue, two Food and two Treasure tokens.
Resolve the Samwise Gamgee trigger, creating two Clue, two Food and two Treasure tokens.
Activate Bloodflow Connoisseur by sacrificing Astrid, putting a +1/+1 counter on Bloodflow Connoisseur.
Activate Samwise Gamgee by sacrificing three Foods, returning Astrid from your graveyard to your hand.
Activate two Treasures by tapping and sacrificing them, adding 1.
Repeat.
This intricate engine uses Samwise Gamgee and Peregrin Took to turn a single creature entry into an absolute avalanche of artifact tokens, amplified exponentially by Academy Manufactor's replacement effect. As you loop Astrid Peth in and out of the graveyard—sacrificing her to Bloodflow Connoisseur and buying her back using Samwise Gamgee's historic recovery ability—the mounting pile of Food tokens feeds both your mana generation and card-drawing loops. Meanwhile, Astrid Peth's exploration ability and Bloodflow Connoisseur's own growth capitalize on the endless cycle of sacrifices, turning a humble hobbit and her friends into an infinitely large threat that generates boundless resources.