There's something that i might want to add to this, called diminishing returns, which in simple language is called to more crit you put in, it will get to a point it doesnt crit all the time, same thing with stacking tendo's on TI or jin rescue, the chain of mysteries just does less dmg, might be a theory, but you'll never know, behind coding and stats, this might be a thing, otherwise people would see a way to cheese pve / pvp.

so there's gotta be math around this issue then, at least for certain ninjas