Just bred myself one of these by accident when trying to breed Mudkips to trade for bank starters! Right now it's a level 74 Marshtomp. It has a Rash nature, but it's attack is still higher than it's special attack, which is disappointing since it just looks like a special defense deficiency. Since I was breeding it with a 6IV Ditto at the time, it managed to inherit some perfect IVs, making it a 4IV in HP, Attack, Sp. Atk, and Speed.

TL;DR - What set should I give my Swampert /vp/? I want to use him since he's shiny but not sure how. Would any set work with him, really?

Just checked his IVs - he has 30 IV in Defense so he's pretty close to being 5 IV, but 7 IV in Sp. Def. It's that stat has to be so hindered...