[Skin Concept] Hazmat Malzahar
I apologize right off the bat for the lack of any visuals, I don't really have an artistic ability to manipulate, so here goes a basic little run down of what I envision could be a potential skin for Ol' Space Aids.
Hazmat Malzahar. Take his void abilities and instead of doom from beyond, replace them with radiation and mutation.
Lets start from the top and work our way down shall we?
Passive: Summon Voidling. Rather than summoning little adorable ticks of annoying death, Malzahar spawns (or grows, ejects or perhaps just pulls out of himself) tiny mutants. These mutants, instead of legs, crawl around in protoplasm and splash their targets with their amorphous bodies to attack.
Q: Call of the Void. This one is rather ornery when it comes to really making it stand out eh? Rather than spheres, we have two pillars appear, made of junk metal parts or some sort of old rusted technology, appear at the starts pointing and fire waves of rippling radiation between them before exploding into uselessness.
W: Null Zone. This one is rather easy isn't it? A bubbling pool of radiation congeals at the target location, and arms of mutants rise up to grasp at the helpless victims. Or just burns them, either way.
E: Malefic Visions. Rather than simple Void energy, Malzahar spits an infectious blob of flesh at his enemy which sticks to its target. This blob contains a radioactive parasite that feasts upon its target until the parasite dies or the parasite kills its target and jumps to a new host.
R: Nether Grasp. Malzahar focuses all of his radioactive potential and channels it at an enemy, ruining their genetics with a thousand years worth of radioactive exposure. Unless its Mundo, I'm sure he won't care at all.
Malzahar himself should be a floating mutation sideshow. His body should be mostly fluid, constantly bubbling and shifting and changing, forever mutating in his glow of radiation. Perhaps he could recieve a nice greenish yellow glow under his feet as he spooks around eh?