super fights

Underground fights are illegal because of the high risk they pose, not only because of having superhumans fighting, but also because many facilities are not very safe or hygienic.
you are making money with bets.
They are always looking for new fighters, regardless of their gender, power, age or anything else.
When a super has very interesting powers, selective breeding programs can be carried out to create stronger superhumans.

literally has any power, although not very powerful things like altering reality on a large scale, controlling continents, etc.
But there are powers such as animal similarities, elastic bodies, low-level shadow control, energy projection, etc.
But one constant is that all supers have three default powers:
super strength that is at least wall level and at most building level.
resistance to shocks, falls from thousands of meters and low and medium-low caliber shots.
healing that borders on regeneration.
From then on, supers can have up to three powers at a time.