Here is Rickson's montage:
www.youtube.com/watch?v=S1X6sfQO_Tw
Rickson is older then Royce and younger than Rorion, and the fiercest fighter in the family
He had 400 fights undefeated and 300 of those he won with the Lion Killer - Mata Leao - the Sleeper - Hadaka Jime
(do NOT called it "Rear Naked" - we don't want anyone do a rear naked anything on us)
Rorion was asked why he didn't use Rickson in the UFC -the answer is clear, it would have been too obvious that Rickson was going to win. The point of Royce is he was smaller and weaker than his opponents and fought from his back - to show the effectiveness of proper JJ
If you get the chance watch Rickson's documentary Choke about a Vale Tudo comp in Japan back in the 90s
It shows how brutal those fights were back in the days when there really were "No Rules" and why we laugh at "MMA" people, most of whom only attend training sessions and never compete, who believe what they do is in any way "real" these days