I see. Then please interpret "Do not take steroids!" as "The benefits do not outweigh the risks". Intake of hormones have a tendency to affect the whole system - often in ways not intended.
When it comes to the question in matter: "Would [anabolic] steroids help my martial arts training?", the answer should be the same as with (as you formulated it) "Anabolic steroids: smart life choice?" (because that's what it is - a life choice). Steroids render permanent changes that affect the athlete's life. It would just be plain stupid only to consider the pro&contras related to the training alone (as some side effects are serious, but don't impair training). (I'm not saying that applies to you - I'm just defending my point of view). Agression, severe acne, gynecomastia and testicular atrophy for instance do not necesserily prevent you from becoming a good martial artist, but should be taken in consideration as well.
So to why steroids won't help your martial arts training:
+ Anabolic steroids will also increase the susceptibility for tendon strains and injuries (muscle strength and size increase at a far greater rate than tendon and connective tissue strength)
+ You will experience disproportionate development of the torso
+ Increased bruising, particularly with minor injuries (oral steroids have a toxic effect on the liver which causes a decrease in production of necessary blood clotting factors)
+ Spontaneous nose bleeds (epistaxis) as a result of hypertension
+ Alterations in cognitive processes and content
+ Violent mood swings including increased agressiveness, euphoria, irritability, depression and anxiety
(Source: National Library of Medicine -
http://www.pubmedcentral.gov/picrender. ... obtype=pdf)