Gilded Goose + Time Sieve + Academy Manufactor + Doubling Season + Soulherder

Gilded Goose

Time Sieve

Academy Manufactor

Doubling Season

Soulherder

How it works

1. At the beginning of your end step, Soulherder triggers, blinking Gilded Goose.
2. Gilded Goose leaves and enters the battlefield, triggering itself and Soulherder.
3. Resolve the Soulherder trigger, putting a +1/+1 counter on it.
4. Resolve the Gilded Goose trigger, creating two Treasure, two Clue and two Food artifact tokens.
5. Activate Time Sieve by tapping it and sacrificing five of the artifact tokens, causing you to take an extra turn after this one.
6. Repeat each turn.