Thanks for this nice and constructive feedback!
I was afraid this kind of blocked scenario could happen, but I didn't expect it to happen before level 40; and I honestly didn't think any players would reach this level so I didn't try to find a solution ^^'
A limit on the rolls is indeed a good idea, maybe combining with a fatigue system where everyone looses HPs after X turns...
Who would have thought that balancing a slot machine would be difficult? x')