>>34472292Green/Red/Blue? Pick the Virtual Console release if you want or go for emulators, both should be easy to get. Each set of similar games, called generation, have completely different mechanics added over time: Gen I Charmander wasn't the best option overall, Gen III gave it some extra moves (Metal Claw rekt). The game is pretty forgiving for whatever picks, save before trying something important just in case
Overall, having 4 different attacking moves and at least one matching your pokemon's type is good enough. This is STAB (Same Type Attack Bonus) for some extra power, which pairs well when you have a type advantage. Bring somebody who knows HMs or False Swipe/anything that put opponents to sleep or paralyzes... They won't hit hard, but will help a lot
My latest team in Ultra Sun was half water types but I had a lot of different moves. The worst fights ended with using Toxic + Vaporeon waiting for some poison damage. Or putting Rain Dance + Thunder for 100% nukes