Why would we give this think Psychic? It would pretty much never be used, and again, I kind of feel like Psychic is an opposite type to Poison. It's not even Psychic itself. Against other Poison types, it'd just use Earthquake, and the super-effectiveness against Fighting types would really never be enough to justify it taking up a move slot.
Speaking of things that are super-effective against Fighting types, will this thing be able to get Aerial Ace, for Heracross if nothing else? I mean, even Dugtrio learns that move. That's even more ridiculous than the DLL learning Tailwind! :P