Gruul Turf + PuPu UFO + Elven Raft-Steerer

Gruul Turf

PuPu UFO

Elven Raft-Steerer

How it works

1. Activate PuPu UFO by tapping it, putting Gruul Turf from your hand onto the battlefield.
2. When Gruul Turf enters the battlefield, it and Elven Raft-Steerer trigger.
3. Resolve the Gruul Turf trigger, returning itself from the battlefield to your hand.
4. Resolve the Elven Raft-Steerer trigger, untapping PuPu UFO.
5. Repeat.