B ------> B- or C+
Ok, I know this mon has been talked about to hell and back but I think its time we settle this once and for all. Swampert is in no way fit to stay in OU in its current state. This is one of the worst Ground in the tier and rarely sees use in high level play. Its lack of a recovery option aside from Leftovers make its longevity piss poor compared to its other water bretherin like Pex/Fini/Slow Twins. It is a horrendous Heatran check as it can only switch into it so any times before Magma Storm or Toxic cuts into it like a knife through butter. Swampert's sluggish speed and low damage output also lets in a number of breakers like Lele/Kart/Rilla/Kyu.
Credit where credit is due, it is decent on GrassSpam as its a grounded rocker and it provides another form of passive healing. GrassSpam is general is extremely hard to use with all the Weavs, Torns, and Hail running around. Swampert on paper looks like a decent check to the popular Arctozolt, altho if Zolt clicks Freeze Dry Pert is in a pickle.
Swampert isn't really terrible but its not really good and should drop to UU immediately. It still being OU baffles a lot of people, me included. Its new VR placement should reflect how painfully mediocre this mon truly is.