Hi,  first i would like to start out, I love chansey.  A 6 turn game with my cuz turned in to 20 turn he was like 5 cards from drawing out.  Then scrunch failed.  Anyway, that was a different deck a difffferent time.
I have killed my cuzin very badly..   All you need is alakazam!  For that reason there are 2 in this deck.  My cuzins and i always have tournments when i go to there house.  I always seem to loose till tonight.  I whipped out the deck i made this morning and i killed him.  my only prob was when i got only one poliwag and he had a huge arsonal.But...we can talk about that another time.   any way..   I call this deck the Alamo.  This deck just stays put and dishes out the damage and uses chancy as a backup damage holder.  Then uses pokemon center or potions and stuff.  And now for the deck.  oh, i almost forgot.  YOu use dragonair and poliwrath to get rid of their energy along with energy removal and super energy removal. 
 
Pokemon
4 abra
3 kadabra
2 alakazam
 
3 poliwag   
2 poliwhirl
1 poliwrath
 
4 dratini
2 dragonair
 
1 chansey
 
__________
Trainers
__________
4 potion
2 bill
2 super potion
2 super energy removal
4 energy removal
2 scoop up
1 computer search
1 pokemon center
2 revive
___________
 
 
energy
___________
7 water
8 psychic
3 double colorless
 
oh, i suggest you add one more chansey and one more pokemon center