Today's update :
I beat Corey first try using 2 super potions and 1 Hyper on my arbok vs the crobat.
I'm now just before Shelly and she will be hard i guess.
My main problem will be rock pokemon (and steel i guess) and i'm afraid of the aster + eclipse combo
Anyway here is the team, i might have to grind a bit before beating Shelly