I was thinking about different ways Duke's powers could be applied, I was wondering how far i could push his powers just based on the nature of his powers, and I landed on a couple ideas. first one is simple, he draws in, more or less absorbing, sunlight through his eyes so if you push that to an absurd degree he could rob Superman of his powers by snatching the sunlight from his body with a glance; hit 'em with that Aizawa mid-flight. the second idea came to be when thinking about his shadow powers, let's say the shadow ability isn't him spreading darkness but instead is an extension of his photokinetic eye abilities and he's now taking in light with his entire body, then naturally his ability to process light should expand as well. so my idea, if his body is taking sunlight from around him and then he should be able to manipulate the way he processes that light and achieve a form of photosynthesis