I couldn't find the original artist if anyone finds out who it is reach out to me!
This is a build focused on a specific gimmick. The phrasing of sneak attack specifically states that you can only sneak attack once per turn meaning we just need it to be on a different turn. The idea is to use frenzy to bonus action attack granting a sneak attack, followed by readying an attack for the moment our foe moves. This mean we attack on the enemies turn giving us another chance to sneak attack!