Since everyone else is chipping in with them, I figure I ought to as well.
Pokemon (19)
3 Cleffa - Duh
3 Staryu SKR - For Starmie
2 Starmie SKR - Perfect for Scizor or Fire decks
1 Mantine - 40 damage lets it lock up Cargo perfectly
4 Hoppip - Fighting Resistance pwnz Tyrogue
2 Skiploom - Status effects are pwnage against Pokemon Powers, and help in 
mirror matches (shut off Fluff
4 Jumpluff - SWARM!
Trainers (27)
4 Copycat - ....
4 Professor Elm - ....
3 Pokemon Breeder - Turn 2 Pluff is a HUGE advantage
3 Pokemon Trader - Staple
2 Pokemon Fan Club - Works well in getting a swarm going
4 Focus Band - Combo with Fluff
1 Healing Fields - Good for tight spots
2 Forest Guardian - Solid for finding Breeder
3 Double Gust - Staple
1 Town Volunteers - TeCH
Energy (12)
4 Rainbow Energy - Combo with Pluff
2 Boost Energy - Perfect for Starmie to use on Scizor or Magcargo turn 2
6 Water Energy - Mantine and Starmie....
2 Grass Energy - Just in case
Jumpluff decks have one MAJOR thing going for them....it's pretty darn hard to 
kill the bugger. With a focus on it, there's a 50% chance you take 0 damage and 
a 75% chance you stay alive. The major downside is the inability to do huge 
damage, so it becomes a battle of who can stay alive longer. 
To be a top contender, your deck MUST be able to beat or at least have a chance 
against EnCargo, Gatr and Scizor. Those are archetypes for a reason: people play 
them. If you can't beat them, odds are you're going to run into trouble.
For Cargo, you have a few options. Your first is Mantine. 40 Damage is an OHKO. 
Your next is Starmie. Boost Energy means that given 2 turns, you can do a solid 
60 to any pokemon, meaning Skiploom can easily KO it the following turn. Your 
last option is Jumpluff. JUMPLUFF? It's weak to Magcargo! Truth, but you forget 
that Magcargo is only doing damage 50% of the time. The other 50%, weakness 
means crud. With a Focus Band, the odds are in your favor that over 3 turns, 
with you going 1/2 on your flips, you'll ko the fire poke before it ko's you.
For Scizor, you have Starmie. Very, very simple. Given ANY 2 turns, one to play 
the Staryu and one to evolve and attach Boost, you can use Core Blast. Use Core 
Blast on Scizor with 4 metals? 70 damage. Solid. Use Core Blast on Scizor with 4 
metals and a Rainbow? KO. Also, if Muk is out, remember to use Skiploom and 
poison, as Muk shuts off that nice pokebody of its. 
Gatr is dead against this. Let's see.....EX Gatr does either guaranteed 10 or 
possible 40....Riptide Gatr has to have 10 waters in the discard, get by Fluff 
AND get by Focus for a ko, not to mention it's weak to Grass =\ Feel free to 
attach a Grass Energy and only take 10 damage against EX Gatr, instead of a 
rainbow and maybe taking 40.
The major, major, major enemy of this deck is Beedrill. Beedrill's power shuts 
off Jumpluff's power for at least a turn, which means you're stuck with a low-HP 
stage 2 that's poisoned and about to take major damage from Beedrill. The good 
news is that Beedrill's flippy attack can backfire; the bad news is that since 
you're going to take 30 poison damage and probably have 10 damage on their 
before, they only need to go 1/2 on flips to ko you. Remember to swarm....
Starmie is basically major TeCH in this deck. It covers Fire well, with a solid 
3 for 50 attack. Core Blast is also solid to use against Scizor. Remember, 5 
special energies on scizor = OHKO. Mantine is just plain TeCH. Late game, 40 
damage is always solid to have for a turn, and early game, it pwnz big fire. 
Jumpluff can stand up to ANY deck, merely because of the fact that it is hard to 
hit, hard to ko and easy to swarm. A baby rule on it is SOLID, the attack is =\ 
but doable, and the focus band + Fluff combo means you have staying power. 
Having 3 of them up turn 3 means your opponent is in SERIOUS trouble. Merely by 
virtue of the fact that it is ridiculously hard to knock out, it is a force in 
the game. For mirror matches, go first and knock out whatever you can quickly. 
Otherwise, it just gets really long, really fast. Ask RaNd0m: I conceded, down 
6-5, after an hour. =\
Good luck!
ausenstrak