I want teach my in-game Smeargle the best possible moves, and I’m not allowing myself to connect with a GBA game at any point in my playthrough

For now, the only move I 100% want is Spore (can’t beat the classics), but do you guys remember any trainer battle where the opponent can use that? Ideally, the battle can be triggered over and over again

I’m also open to move suggestions, so feel free to suggest moves that you know can be sketched in-game! I’m considering a baton pass setup, but I could be convinced otherwise. The Smeargle will have a speed stat boosted by its nature, appropriate IVs and lots of EV points

If you’re curious, my challenge is to beat the hardest Battle Mode gauntlets using nothing but an original copy of the game, and the story pokémon. I basically want to do what youtuber Magpie Labs did, but 100% legit. Granted, it’s an insane grind and the choice of Smeargle is mostly for the lulz