Post ideas for gimmicks for future generations and what you just think is cool. Realistic or not.

>Sacrificial Pokemon
A special item like a nonlethal stake or forfeit pokeball that you use to 'sacrifice' a pokemon, instantly downing it and making it unable to revive until the battle is over, but you also give any pokemon of your choice a massive boost to all their states and even increased health for that battle, end game you can unlock an item that does the same but leaves a sacrifice Pokemon at one HP instead, if you decide to sacrifice a pokemon and boost one of the same typing, the bonus is even bigger

>'Infected' Pokemon
Stealing from the idea of PokeRus, some pokemon can carry and be infected by very special and specific diseases that can do just as little as give a single random stat increase per battle to even swapping the typing of that Pokemon (preferably with a new apperance too). You have to have Pokemon hold special medical masks or vaccines to keep clean pokemon from contracting any

>New Type
Most out there idea and likely the hardest to implement, but just add a new type to the game with special properties. Like radioactive pokemon from Uranium or Delta pokemon from insurance. Just add a whole much of variant and region form Pokemon