Hey, so I heard Tumblr likes goblins. So I present to you the Inter-Dimensional Goblin.
They can manipulate atoms and change the environment around them to literally whatever they want, so they could be ANYTHING. A rock. A bird. The chair you’re sitting in. Who knows! And what do they do with these godlike powers? Steal shinies and do Sick Pranks. Also making pocket dimensions to hoard the Shinies.