I have a stratigy for chansey.
You use double-edge and on your next turn use 2 super potions.After you
discard the 2 energies,stick a double-colorless energy under
chansey.(it's the only way you can put 2 energies in one turn.) after
that,chansey has full health so the next double-edge won't matter.you
could also use 4 potions and screw the energy thing.
Signed,
PokeQueen Showers