O-Power Bargain3 allows you to get infinite money/premier balls.
edit: GUYS GYARADOS GETS CRUNCH NOW
Naturally, the team I had to get through to clear Maison battle #100 was utter bullshit combined with the ferrothorn that ended my best streak back in X.
#1: Dugtrio. Sand Veil, Brightpowder, Sandstorm, Substitute, Toxic. Nearly beat Dragonite on passive damage and evasion alone.
#2: I forget what, but Dragonite oneshotted it. The problem was that I was now locked into Outrage and on Toxic with like 20 hp left
#3: Ferrothorn. Leftovers, Ingrain, Curse, Gyro Ball, Rock Smash. Dragonite was my best option with Fire punch... and he was down. I had to have Metagross-M use Earthquake and overpower Curse (aided by a lucky crit).
Thank god.
Ended up losing my run on battle 107 to a Volcarona and Heracross (Volc downed Dragonite and Metagross, Hera downed Greninja)
I am not trying another Maison fun for quite some time, this shit is draining. On the bright side, 600 BP = helloooo move tutors.