>>45569838>Butterfree with all three status powdersRetarded, the AI will just use them at random unless a specific AI is made for this one gym leader
It'd be more threatening if it was just Confusion and Sleep Powder, then you'd actually need some sort of strategy (Pokemon that outspeed Butterfree, Pokemon that can lower its accuracy, Pokemon that aren't gibbed by Confusion).
Other changes to the team are honestly not just on the verge but flat out make him too strong. Yanma as an addition to the team (and dropping the useless setup fodder Kakuna) is fine but Sonicboom in the lv10-15 range where you're expected to fight him is absolutely devastating. Scyther having Technician Wing Attack on the other hand is just obnoxiously overkill, nothing is going to survive that without a ton of level grinding, and even then Scyther is a bulky enough Pokemon that paired with Sitrus Berry it can just mow down any of the Pokemon you can catch near the beginning of the game. Even if you caught an Onix (available in Union Cave, high defense stat, Rock resists Flying), U-Turn would make quick work of it (speaking of, for the Pokemon selection in the earlygame Bug and Flying is alarmingly good coverage) before it could get much done with its Rock Throw coming off of 45 base Atk. The only way to make that Scyther fair on the player is if it heavily favoured Quick Attack.