C4703 Necromancy Ring
Obviously, there were very few people who would use their own Hexagonal Flame Crystal … Except Jiang Shenwu! Or perhaps, other than encountering a life or death situation with the Supreme Relic, there was no other way but to forcibly merge the crystal into one's own weapon.
If that happened, it would be even easier for them to survive. Once they died, there would be nothing left.
Of course