[@TheUnknowable] I'm unsure on this as well, as I think it has been mentioned here and there that Kyber crystals are [i]the[/i] lightsaber crystals, but didney is vague on whether or not there are others viable. I've gone ahead and made mention of the Legacy crystals in my CS, but I think it's up to our GM as to whether or not that's alright with the canon of the RP.