My question is do we really need "glow" at all? I'd much rather more detailed or intricate or themed relic designs. (Like WHM's nature themed leaf staff was super cool)
Unique styles themed after each job impress me much more than glow effects.
I did enjoy that Bards weapon when folded looks like an electric guitar, thats cool! Build on that!
I'd love to see a weapon design that looks like a musical instrument when its open in combat.
Give each job unique relic weapons that fit with their lore.
