I am Russian. Systema is just as effective as Acai Berry. Its a load of horse shit.
Fedor on the other hand. This guy is unbelievable. He demolishes any fighter of any size or background. He has NEVER lost in his life.
If you wanna learn how to kick some ass, don't fall for that martial arts dancing shit bull crap. You need boxing, jujitzo and kick-boxing. Btw Fedor is a samba specialist, but thats basically the same as jujitzo.
All that martial arts dancing crap DOESN"T WORK. look at the mixed martial arts scene! Do you seem the chopping and dancing around?