I love randomly getting shorts about Star Wars on YouTube because you'll get ones like "This was the deadliest lightsaber: the peepeepoopoo crystal would make your lightsaber spit out magma, poison your enemies, make you 1000x more powerful, and give you magic wizard armor" and just have to accept it cause it might be made up, or it might be real canon.
actual videos I've gotten: The Kaiburr crystal (not the Kyber crystal, this is the one that makes you 1000x more powerful), the magma crystal, the frost crystal (how the hell does that work), the poison crystal, the flicker phase saber (turns on and off randomly), an invisible bladed saber, etc etc
I'm going to tell you a secret: Legends is very frequently dumb as hell.
oh, no, I'm aware, that's why I can never tell if it's something someone made up or if it's actual canon cause canon is ridiculous in Star Wars
some of the dumb crystals are dubiously canon because they're from vidya games
"we need more shit for players to unlock"
yeah thats where the dumb shit is often from, the dual phase one which ASHCHULLY WAS A VADER SAber (no it was not fuck off kevin j anderson)
kaiburr is intersting because it was from the very first star wars novel, splinter of the mind's eye
almost all of those are from FFG to customize your lightsaber in their system. Which was neat but man lightsabers are janky gear