I achieved an infinite loop with the following combo:
- Workout Draw effect in play
- Zen Bells.
- Red Snule.
Draw until your whole deck is in hand, then play Red Snule and Zen Bells. Play the Kettlebells, which forces the game to redraw both Red Snule and Zen Bells.
Net result: 1 free Kettlebell + infinitely resetting your Glutes.
I'll see if I can come up with a stable infinite loop without needing Workout Draw.
Found an infinite loop w/out Workout Draw: Start with the Zen deck, cut workout cards every time you can, get Pre-Workout Mix, and you can stack just enough cards on the third competition to gain an infinite loop assuming good RNG. I ended up in the Iron Invitational with Twerk and Back cut from my deck and Pre-Workout Mix added, resulting in a deck that can loop infinitely.