KMST 1.2.435 - Luminous

Luminous is obviously not human, because per the laws of the Maple World, humans cannot control opposing elements, such as Light and Dark.

Also, this:

Why are the top hits so low?

They're the 50% extra damage bonus from using a skill in its respective mode... I think, it's sorta like how Dual Blade's Mirror Image was, but not at the very beginning, some time between then and when it became exactly like shadow partner. I think it does 50% of the skill's damage off your range, but I can't be sure.