[@OtomostheCrazy]

Never used Jumpluff before, but here's something I found:
Jumpluff @ No item/Life Orb
Trait: Infiltrator
EVs: 252 SAtk / 252 Spd / 4 HP
Adamant Nature (+Atk, -SAtk)
- Acrobatics/Aerial Ace
- Swords Dance
- Sleep Powder
- U-Turn

This is a good lead set. The plan here is for Jumpluff to go for the Sleep Powder first turn (and hope that it hits). Then, it is able to set up a Swords Dance on a switch/sleeping Pokemon. It can then go for Acrobatics or Aerial Ace. If you run no item on Jumpluff, definitely have it learn Acrobatics; it doubles the move's power from 55 to 110, then Flying STAB on top of that gives it a whopping 165 base power. That, plus the Attack boost, will be very effective. If you want to run Life Orb, then Aerial Ace is your best bet. Life Orb plus STAB gives it 117 base power - not as effective as the Acrobatics set but the never miss bonus is nice. U-Turn is just for escaping and allows for a switch in to take an expected Rock, Ice, or Fire type attack. The reason I don't recommend Bounce is because it's a two turn move, so your opponent has time to switch in order to take that.

It's funny you should mention bringing a character from that RP. Ian might be on his way as well. Go ahead.