>>19631305There's a format specifically for mono-type teams. Don't take your six poison-bros to an OU or VGC fight.
If you can find a Poison-type that learns a Water or Ice attack, give it main Air Balloon and switch it in against an Earthquake user.
Maybe, MAYBE, include a single Venoshock user, but only if you have Toxic Spikes or multiple walls with Poison Point or something.