Schooling Wishiwashi has a base stat total of 620:
45/140/130/140/135/30
Normal Wishiwashi with its base stat total of 175 detroning Sunkern as lowest base total:
45/20/20/25/25/40
That's a fucking sick stat spread. It's rare to see a non-legendary (pseudo or otherwise) with that kind of bulk and offensive power. It's a shame that the HP is so low, I I guess it needed to be the same as normal Wishiwashi's for when it changes back (it's also a shame that the speed sucks, but I think I've come to expect that at this point). I can see myself breeding for one with a decent nature in the future.
I haven't used Wishiwashi enough to see it change back after losing enough HP. Does it just revert to solo Wishiwashi when it hits 50% HP or something? Or can it go into the red before reverting?