If ester length did not matter and we're only talking about steroids, then the following is a great stack for any fighter looking for the maximum in aggression, strength, muscular endurance, and cardiovascular endurance.
Test prop
EQ
halotestin
SD
Also, don't discount SD. Many look at this steroid as a mass drug and therefore, less than ideal for fighters. However, SD does not have to cause weight gain, so long as the fighter controls his caloric intake. He still might gain a few pounds from it, but nothing he couldn't deal with by dropping a few pounds before weigh-ins, if that was even necessary. The reason I highy recommend SD for fighters is because it is one of the very best drugs in existence for increasing anaerobic (muscular) endurance, as well as pure muscular strength. This increase in muscular endurance is great for a fighter, as they must frequently exert themselves at high intensities for long periods of time. SD enables the muscle to contract harder and longer under a high intensity of effort than what it could normally do on its own. Other drugs, such as test, boldenone, or nandrolone, do NOT have this characteristic..or it is minimal.
There are two kinds of mucular endurance...high intensity (anaerobic) and low intensity (aerobic). A Fighter needs to excel at both to be at his most formidable. Drugs like EQ do a great job of increasing low-intensity muscular endurance, as a direct result of increased oxygen carrying capacity, while SD directly enhances high-intensity muscular endurance. This increase in high-intensity muscular endurance can be extremely helpful when the fighter is involved in grappling or other intense physical struggles against his opponent. A fighter doesn't want his muscles giving our prematurely or becoming too weak to ward off his opponent's attacks. Failing in this regard could result in being taken down, or chocked out, or losing position, etc, etc, etc. This makes SD a great drg for fighters. At his bodyweight, 20 mg daily, added in at 4 weeks out, would be just about perfect.
Ohhh...and NO tren! Many suffer serious cardiovascular impairment when using tren. It can have potentially devastating conequences on a fighter's stamina. Some people are affected so badly by this that they feel like they are freakinl sufocating just sitting there. more than once I have wpke up in the morning when using tren and felt like I couldn't breathe.like i wa literallu oxygen desprived an started gasping for air. this has happend dozen sof time after 3-5 weeks of using tren....and ONLy when I use tren. It happens like clockwork. Not all respond as severely, but even a 10% reduction in cardiovascular capacity can gave serious consequences...and most are affected more stringly than that, to the point they get winded easily. Obviously, this is a horrible drug for any athlete who relies on cardiovascular conditioning to excell at his chosen sport.
Halotestin is one of the very best drugs for a fighter, due to its ability to enhance both aggression and strength without weight gain. It is one of the best drugs ever made for increasing aggression...and perhaps no other drug is capable of adding as much strength in the absence of weight gain. Great, great drug...it should definitely be included. You could add it in to his cycle at 4-6 weeks out at 30 mg/day and experience great results.
Test does so many great things for the body, do I really even need to explain why at least some testosterone shoud be included? Still, I do not think high doses of test is a great idea for an athlete. 300 mg per week of prop is more than enough. You don't need to rely on testosterone for strength, mucular edndurance, agfresion, and cardio vascular endurance, as the other previously mentioned steroids do a superior job at optimizing those effects. However, testosterone is ncessary for normal physiological functioning, as well as libido, mood, etc...and it will compliment the other steroids in the stack well. Test prop will clear the system very quickly, so it is a far better choice than enth or cyp, for those worried about drug tests.
I understand EQ is not a great choice because of drug tests, but that is a shame, as it is a great drug for a fighter. It provides little weight gain and increases RBC count, which directly improves cardiovascular endurance. It will also have some positive effects on recovery, mildly improve strength, and it has a low side effect profile. Bold prop is a more quickly clearing alternative, although most respond to it poorly to it in terms of side effects..and availability might be an issue, as well. Even if he had to cut the EQ, but still had test prop, Halotestin, and SD to use, he would improve his overall performance tremendously.
Other drugs, such as Cheque Drops, work great when used shortly before a fight, but he might not notice any beneficial effect if he is already using 30 mg of Halo per day the prior 4-6 weeks.