Alright, looks good for your first fake, but like you said, there are little places that need to be corrected...
Jumpluff ex
Stage 2 (G) Pokemon Eolves from Skiploom
100hp
Poke-Body-Cotton Shield
As long as Jumpluff ex is on your Bench, reduce all damage done to Jumpluff ex by 40(after applying Weakness and Resistance)(excluding Pokemon ex).
(C) Energy Beam(20+)
This attack does 20 plus 10 more damage for each type of Basic Energy in play.
Weakness(R)
Resistance(W)(F)
Retreat Cost
There, all better.