Board Thread:Off Topic/@comment-25857155-20150111054847/@comment-25555436-20150304032221

Or you could just give him a Semblance based on the ability of Excalibur. Excalibur was capable of "collecting the lights from the planet", in other words, absorbing light. How does that work as a Semblance? Well, kinda like Adam's Crescent Slash in the Black Trailer:

Energy and anything similar, as long as it's not physical, while it can still cause damage to Arthur, he can "absorb" it. With said energy, he can't really do anything on it's own, but he's capable of "sending" said energy into nearby non-living objects, like his armor, or his weapon.

Duration and effectiveness depend on the amount and type of the energy used. Amount of Aura used depends on the size of the object he sent energy to, and the number of objects he's sent energy to. He can't absorb energy received from physical attacks, even if those attacks have energy of some kind in them (Fire ball? Can absorb it. Fire punch? Can't absorb it).