I'd give an evolution to Skarmory, which would be achieved by Dusk Stone. When it evolves, its typing would be transformed into dark/steel. In appearance, it'd still keep its bird-like body structure, and its height and weight would remain the same, more or less. d: Only major changes that you'd be able to notice would be its eyes, wings, and body color. Its eyes would be smaller, and meaner-looking. Its wings would be wider, allowing it to blow strong gusts of wind. Finally, its color would be a darker shade of gray. It'd be like one of those pseudo-legendaries, as people call it. xD" Stats-wise, its Speed would be decreased a little, as it would be able to make limited movements due to having bigger wings. Its Attack would be increased, though, and as well as its defensive stats. In its arsenal, it'd be having a variety of dark, flying, and steel-type moves, including Brave Bird, Metal Claw, Crunch, Night Slash, and Iron Head. It would also be having access to some stats-boosting maneuvers, such as Swords Dance and Iron Defense. Depending on how you use it, this Pokémon could make a great physical sweeper or a wall. I'm not quite sure what its name would be, though… maybe Darsky. Y'know, a combination of "dark" and "sky." Either that, or we could call it Armodarsky, which is a mixture of the words "armor," "dark," and "sky."