I'm just imagining the aspect armor idea, would looking at Light armor be like looking at the sun? I can't imagine it being much of anything but blindingly bright, though that brings another idea to mind: Light player and friends are stuck someplace really dark, someone tells the Light player "Yo, turn your armor on!" suddenly it's like someone installed a mini sun in there, minus the heat and gravity, and then in the middle of battle they don't get hit, because all the enemies are blind now
Pft. Alternatively, their armor has the highest LUCK stat in the Session, duh.