I know about bulky Pokemon like Chansey, and Stealth Rock setters but is there anything else I'm missing. I want to get better at singles and not run 6 offensive Pokemon. (this is for SWSH Battle Stadium Singles)
Support Pokemons are those meant for helping the Main attack power of your Team. Like having moves like heal pulse (better to give a draining move to the attacker only),poisoning your enemy like that. And cancelling out your enemy's stat changes or preventing attacker's stat from falling by using mist when using moves like fleur cannon or overheat.