Originally Posted by Dino
As your pokemon evolves it gains more experience.
The higher EXP your pokemon has the easier it is for them to perform moves and in turn makes them use less energy.
More simply put (TLDR)
More EXP = Less Energy Used
Originally Posted by Neku Sakuraba
Also, if I remember correctly, it can also strengthen moves as EXP goes up. You can raise the EXP of a Pokemon two ways:
1) Evolve it at the Evolution Dojo
2) Buy a Rare Candy and use it on a Pokemon of choice.
Rare Candies cost $100 a piece, so it's not recommended, because, unless you are BlueTowel from PWN Forums, you would want to evolve a lot of your Pokemon.
Also, I've got another question.
If you took the referee-test, and sended it to Just Another Machine Emulating Stuff
How long does it take to get a (non-)approval from him? Since I somehow heard it to be a machine. Why didn't I get a PM back?