Yeah I should've clarified that obviously there are already negative priority attacks that aren't utility moves, but they all suck haha. When I said that power creep makes them irrelevant, I was actually specifically thinking of Focus Punch and how it sees a fair bit of use in Gen 3 competitive play but almost completely disappears from movesets once there are better Fighting-type attacks than Sky Uppercut and Brick Break available.There are a few negative priority attacks. And checking exactly how many there are left me very annoyed.
(Note that Beak Blast sits at -3 in games where it exists).
The mechanic for Avalanche/Revenge is "If you get hit, this move is more effective". That's roughly the same as the mechanic for Shell Trap(this move only works if you get hit) and similar to Beak Blast, which hits no matter what but burns the oppt if you get hit. They should all be at -3 with Focus Punch at -4. That way Avalanche can interrupt Focus Punch, while all of the "Come on and hit me" moves are the same priority. I know this doesn't matter, since nothing uses any of those moves competitively and only rarely in-game, but there's no reason for Shell Trap to work one way and Avalanche work some other way.
Beak Blast is interesting. It's a clear case of the devs trying to make a negative-priority attack strong enough to be worth using, but still failing. It dodges the risk of Revenge and Avalanche by being strong even when you don't get hit, but punishes the opponent on a different axis if they choose to attack. Conceptually, it's pretty cool, and in theory it's one of the only ways to reliably punish U-Turn, but it's still not enough. Ironically, it's not even very good as an in-game move, because while Toucannon is theoretically slow enough to not mind the negative priority, in practice base 60 Speed isn't that bad in Alola, so you'd probably rather use Drill Peck or Fly most of the time.
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