An Idea For Vel'Koz skin...
So I was just thinking, he is a floating being that nobody really understands so why not have a Flying Spaghetti Monster skin for him? Basic attacks would lash the enemy with a spaghetti strand Q would launch a meatball that had a sauce trail behind it and would split off into two meatballs at the end. W would launch a boiling surge of pasta sauce forward E would burst a meatball out of the earth R would blast the enemy with a holy pasta beam