Stasis + Generous Plunderer

Steps

1. At the beginning of your upkeep, Stasis and Generous Plunderer's first ability trigger.
2. Resolve the Generous Plunderer trigger, causing you to create a Treasure token and causing an opponent to create a tapped Treasure token.
3. Activate the Treasure by tapping and sacrificing it, adding {U}.
4. Resolve the Stasis trigger, causing you to pay {U}.
5. Repeat during each of your turns.
6. As long as Stasis is on the battlefield, players skip their untap steps.