Pokemon Inflamed Red is a QOL Difficulty hack that will (when it’s out of beta) allow you to catch all Pokemon from Generation 1-8. It is a difficult hack similar to Inclement Emerald, with EV training not required but recommended. Other trainers don’t have EVs so it’s your choice if you want to train. The bag and switch-mode is allowed by default, but you can disallow the bag and enable the set if you want!
