I'd be surprised if they didn't go totally overboard in ensuring there's absolutely no possible way to cheat past the one time revival limit. I'll bet it can't be called by any other move, it'll have the "only Pawmi3 can use this move" clause, and it'll probably ignore Leppa Berries. The only plausible corner case I can see getting missed is using a Transforming ally to copy the move before using it, and that is too risky to be practical anyway (since it means using either Mew or a non-Imposter Ditto).
Or they could straight up hard code it to only work once per battle. Think No Retreat for partial precedent, or the various special once-per-battle mechanics.
At any rate, I'm mostly interested in its potential applications in Ubers, where there are likely to be one or two mons that are just obviously a cut above everything else going by recent precedent and the likelihood that there'll only be two 680BST mons on release.
While I do expect them to put some sorta limit on reviving with the move, I think it'd be hilarious to have a random NPC show up with 6 of the pawmi evo whom all know the revive move
It's been said that none of the starter hidden abilities are new, and I'm assuming by that that they aren't even "different name but same effect" abilities. It honestly just might be Prankster, period.
I think my only issue with that is that Prankster isn't really all that broken imo. Granted we're going by Khu's standards and there's not much of a way to know what he deems broken, but when I hear "Godtier ability" i think of stuff like Magic Guard, Protean or Shadow Tag instead of Prankster
Fuecoco final evo having a berry related abil kinda sucks bc I cannot see a world where the rocks-weak knock-weak mon would want to run berries
Personally, for Quaxly final evo, I'm hoping Dancer. Copying Swords and Dragon Dances would both be pretty neat, and depending on how its adapted, Victory Dance with Lilligant would be pretty cool as well.