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 Goblin Bombardment by sacrificing Astrid, dealing 1 damage to any target.
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 clever engine turns the simple act of casting Astrid Peth into an overwhelming cascade of resources, fueled entirely by the replacement effects of Peregrin Took and Academy Manufactor. As Astrid enters, Samwise Gamgee triggers alongside her to flood the board with artifacts, which Peregrin Took and Academy Manufactor multiply into an absolute mountain of Clues, Foods, and Treasures. You can then use Goblin Bombardment to sacrifice Astrid for damage, and use Samwise Gamgee's second ability to loop her right back to your hand using the massive surplus of Food you just generated.