The reason to use him is that he cannot be (reasonably) edicted. Goblins play edicts as their only removal. They have no swords.
That's a good point. Though to be fair, he can be killed with a Gempalm Incinerator which every goblin deck I've ever faced ran as a four of. But nevertheless, he is undoubtedly strong against Goblins especially if he comes out early enough.