This ingenious loop turns Warden of the Inner Sky into a relentless engine by utilizing its activated ability to tap artifacts or creatures for a +1/+1 counter and a scry 1. That scry triggers Arwen Undómiel, which places a +1/+1 counter onto Lonis, Genetics Expert. Placing a counter on Lonis then triggers her ability to investigate, and with Academy Manufactor present, that single Clue replacement effect floods your board with a Clue, a Food, and a Treasure token. Because those new tokens are artifacts, they immediately feed back into Warden of the Inner Sky's tapping cost to repeat the entire sequence for infinite tokens, counters, and scries.