Something tells me Corsola will lose Hustle (Japanese:
Enthusiasm View attachment 204398) and probably gain Cursed Body (per Cursola's dex entry saying touching its ectoplasm will turn you to stone). Keeping Natural Cure and especially Regenerator would be great, but not sure if either of those fit thematically with a bleached out ghost coral.
Since Cursola's stats haven't been shown yet, J-Corsola's base stats for reference are
HP 65
Atk 55
Def 95
SpAtk 65
SpDef 95
Spe 35
Total: 410
+80~100 boost probably, with most of sunk into Def and SpDef if Galarian Corsola remains a defensive 'mon? I think it'll end up with a similar spread to Dusknoir.