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Knock Off should be a defining move; I would put it at optional, but I don't have any strong objections to making it required.
Recovery should be required. Without recovery, it's much harder to justify clicking Beak Blast (as opposed to switching out) when the opponent is clicking Knock Off...
The most obvious threats are Hemogoblin and special attacking fairies: they resist our dark STAB, they can't be burned by Beak Blast, and they can outrun us whenever we click Beak Blast (regardless of speed) and hit us with their supereffective STAB. Opportunist may help in some of these matches...
No one is going to reprogram the teambuilder for a new OM. You need to work within the existing framework, which means you would probably need to use nicknames to indicate which gen you're using.
This sounds like VoltTurn Mayhem but worse. Randomly switching Pokemon every turn is way too much RNG, and matches are likely to be very long since everything can just spam Protect to avoid unfavorable matchups or rack up hazard damage (if they've managed to remove some of the boots that pretty...
We don't necessarily need to target specific moves. For example, if we have Swords Dance, the opponent might have to choose between risking a burn and risking giving us a free turn to setup, regardless of which particular contact moves they have. As others have noted, most commonly used physical...
How many moves do we want to build around? How should they interact with one another, if at all?
I would say one, or potentially two if their conditions are related. For instance, it would be easy to build around Weather Ball + Solar Beam or Eruption + Dragon Energy, but making an effective user...
WIP
Name: Butter Knife
Description: This Pokémon does not have access to any high-BP STAB moves, but it makes effective use of its less powerful STABs.
Justification: There are a couple different routes this concept could take. First, it could make a Pokémon that is less reliant on its STABs...
Effectively, everything has:
Speed Boost
Battle Armor
Sturdy
Damp
Oblivious
Cloud Nine
Color Change
Own Tempo
Suction Cups
Clear Body
Magnet Pull
Soundproof
Pressure
Thick Fat
Pickup
Hustle
Sticky Hold
Liquid Ooze
Overgrow
Blaze
Torrent
Swarm
Rock Head
Rivalry
Heatproof
Download
Iron Fist...
Nothing in the premise indicates that a move (or ability) can be used more than once if more than one team member learns it. If that's what the premise is intended to be, then you should rephrase it to clarify that.
I'm not sure whether the premise is poorly phrased or the example is incorrect, but you say "every move and every ability can only be claimed once", and the example has two Pokemon with Hurricane.