What the heck even is Garganacl doing with Salt Cure? Like, its battle animation looks like it's covering the opponent in a layer of crystallized salt, but why does that hurt them? Its dex entry says that pokemon that lick the salt are healed! Does the Garganacl have a type of corrosive salt that's different from what its body is made of? Why does it damage water- and steel-types more? Water sort of makes sense since it might upset the balance of salt in a fish's body, but what about water types that don't have gills (Samurott, Rotom, the fucking ROBOT IRON BUNDLE) and therefore don't absorb the salt into them? And what about steel types? Unless they ingest the salt and eat too much of it they shouldn't be affected at all! WHY CAN'T YOU JUST MAKE SENSE?
I actually kind of unironically want an answer to the first question if anybody has any insight.