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 Viscera Seer by sacrificing Astrid, causing you to scry 1.
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 loop turns the generous token-generation of Peregrin Took and Academy Manufactor into a self-sustaining engine fueled by Samwise Gamgee and Viscera Seer. When Astrid Peth enters the battlefield, Academy Manufactor transforms her and Samwise Gamgee's Food creation into a massive windfall of extra Clues, Foods, and Treasures, while Peregrin Took multiplies those tokens even further. You can then sacrifice Astrid Peth to Viscera Seer to set up your draws, use the abundant resources left behind to fund Samwise Gamgee's recursion ability to pull her back to your hand, and crack your manifold tokens for the mana needed to cast her all over again.