you cant
Corphish is a water type of Pokemon. In Pokemon Battle Arena, it will evolve if you manage to raise it to a level 30.
you find a Pokemon that you can do it with then you go to my Pokemon then you click evolve me then hit the one you want ----------------------------------------------------------- example : evee
no
level50
You dont you have to catch them
34
36
You have to trade it.
level 36
It's a battle game, not a story mode. Trade back to your game to evolve YOUR Pokemon. You can't touch the rentals.
If the Pokemon is at the lvl to evolve you go to Trainer HQ and click my Pokemon find the Pokemon and click evolve me.
lvl 36 :)