pikachu or a legendary Pokemon
for your party, you'll need Pokemon that know most of the HMs as they are used often
It's possible.If you cheated (used a GameShark or ActionReplay) to obtain certain Pokemon, you COULD encounter glitches.Like, I think that there is a GameShark code to modify a Pokemon in a certain slot in your party into a certain Pokemon. If you tried to trade it, a lot of issues might occur.But if you used a code to encounter a certain Pokemon, you SHOULD be fine.And if it's just a WiFi battle, you should be cool.
You should used bug, ghost, and dark type pokemon.
Sacred ash can be used to revive all fainted Pokemon in your party.
ARCEUS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Go to the Battle Tower then the people should move
An aggron probably... I used an aggron to beat the elite 4...
Complete burn it will burn up any berry used by a Pokemon
You have to have the Pokemon you want to use it on in your party. Then, just go to the Bag, find the Fire Stone and select Use. You will be taken to the Party screen and if the Stone can be used on a Pokemon it will show the sprite and its HP. Select the Pokemon to be evolved and it will evolve. This is the same for all Stones. Hope this helps! :D
You should use either Groudon or your Starter Pokemon. I used a crobat and a garados.
grass types
You should atleast have your Pokemon level 38 or 39 because clairs highest level Pokemon is 41 that's her kingdra and her lowest level Pokemon is level 38 and she has 3 of them gyrados dragonair and dragonair so if you want to beat her you should rely on electric ice and dragon type moves. Heres a example of the Pokemon in my party that I used Typhlosion,Ampharos,Gyrados,pidgeot,poliwrath,and jynx all level 40 except for Typhlosion level 43. Hope this helps. From Nick Oaks.