I am not sure what they would be on... but in a perfect world a fighter would want to use these:
*Boldenone Undeclynate (EQ) great for RBC and lean gains collagen support for joints.
*Methenelone Enanthate (Primo) Lean, hard muscle with collagen support for joints.
*Nandrolone Decanoate (Deca), could cause bloating, so keep it light, but same as above.
* Oxandrolone (Anavar) Hard lean gains, zero bloating or aromatase and definitely a strength booster at 40mg and above per day.
* And of course Test. Although, I would keep this under 400mg a week due to possible bloating sides.
I really like Trenbolone Enanthate, but I have noticed that with tren my cardio seems to suffer.... even when I am leaner and harder. Many others have complained of the same thing, so for a fighter this may not be a good choice.