I think you may be missing the point of Gastro.
Gastro is used STRICTLY for Gyarados and Rachi. Like, that's it. If it does something else, it rarely matters anyways. I have Skarm + Amoonguss + Rain, which handles just about any Dragon set whatsoever.
Thx tho, lol. Bromie.
Lol yeah missed that part broseph awesome team! xD