So many people are asking what do I need to face the Frontier Brains.This is just so you know what Pokemon Brains and challengers can use in the battle.
Fist things first.There are 5 Frontier Brains and once you defeat them you can challenge the Master Brain who is the Leader of the Battle Frontier.
The Frontier Brains are :
Tower Tycoon: OU pokemon and under
Palace Maven:BL pokemon and under
Factory Head:UU pokemon and under
Arcade Star: NU pokemon
Arena Captain:2 Type only pokemon from any TIER except UBER.
Each one of them can use one UBER as their wild card. However the challenger cannot use UBER and must use pokemon of the same TIER as Frontier Brains.
For the Master Brain and only the challenger can use up to 2 UBER pokemon since Master Brain can use none to 6 UBER.
Tho the following Pokemon cannot be used under by any circumstances:
Mew
Manaphy
Darkrai
Arceus
Also its forbidden to: Put more than one pokemon to sleep(Sleep Clause), OHKO moves(Sheer Cold, Fissure, Horn Drill etc etc..),have more than one pokemon with the same species(Species Clause) ,items that rely on luck( Quick Claw etc etc..), moves that causes to raise evasion, Soul Dew....
If you don't follow these terms you will be disqualifed.
Thank you!