Platypus charged in, each swing a massive blow, yet still he flowed from one stroke to the next. His attack a work of art, each contact chipping pieces off the Narrationblade.
So, Platypus isn't truly a Luxsprite. He's a being out of that system. He is willing to use Dark to further the Light, and is a being of both Order and Chaos, so he is unaffected by the change. His Blade isn't a Luxblade, but since none of them truly know what it looks like, no one knows that. He believes he's a luxsprite, so his blade molded to that image, so Nameless wouldn't be able to tell the difference, even if he has experience with Luxsprites. He still loves the chaos, but now applies Order to it, and he uses both Dark and Light, making him a being of Ordered-Chaotic-Light-Dark. My explanation of him shifting as he came closer to the Plot is the reason for this, Plot was Dark to the Narrators, but Light to RP people, and he had both Order and Chaos to him.