RecycleMons
Metagame Premise:
Single use items like Focus Sash, Weakness Policy, Berries, Herbs, etc. are immediately regained upon consumption.
Potential Bans & Threats:
Power Herb Meteor Beam and Throat Spray sound based moves let Pokemon like Nihilego and Noivern snowball quickly.
Bulky Regenerator users like Toxapex and Tangrowth can use Eject Button to come in on attacks and give teammates free switches.
Offensive mons like Blaziken or Azumarill that struggle with longevity can use Sitrus Berry to heal up whenever they drop below 1/2 HP.
Moves like Draco Meteor and V-create that lower the user's stats can essentially be turned into pivot moves with Eject Pack. Dragapult's excellent Speed and Victini's exclusive access to the powerful V-create make them prime users of this strategy.
+6 omniboost at 1/4 HP is comically overpowered and worthy of a quickban. Same applies for Liechi Berry's +6 Atk, Petaya Berry's +6 SpA, and Salac Berry's +6 Spe.
Questions For The Community:
The nature of stat boosting berries (Starf, Liechi, etc.) might cause an infinite loop upon activation. How should this be addressed? The only berries that wouldn't be banned regardless would be Ganlon Berry and Apicot Berry, both of which likely wouldn't have a particularly strong impact, so a ban on all stat boosting berries looks to be a good, harmless solution.