There’s so many techniques out there in Brazilian Jiu-Jitsu, right? Like, there’s so much that you can’t learn them all by a long shot… So you have to learn to prioritize. To learn and perfect the high percentage techniques first, and then to move on to other ones.
For example, there’s a bunch of choke techniques you could learn. But only a handful of them are a “must”.
John Danaher demonstrates 3 BJJ chokes (or, more precisely, strangles) that everyone should learn:
Sloth Jiu-Jitsu: you can be slow and unathletic and still kick butt in Jiu-Jitsu.