Battle maison super singles: good team to start with.

[MysticSniper]

Kingdra @ scope lens
timid
sniper
252 hp, 100 spd, 52 def, sp. atk, & sp. def
draco meteor, scald, flash cannon, focus energy.

froslass @ focus sash
timid
cursed body
252 sp. atk & spd, 4 hp
taunt, destiny bond, spikes, frost breath.
charizard @ charizardite x
jolly
tough claws
252 spf, 200 atk, 44 hp, 8 def, 4 sp. def
flare blitz, steel wing, dragon claw, dragon dance.

Start with kingdra and use focus energy on the first turn. Now everything it uses will go critical, which means sniper is always in play. Now, draco meteor, with STAB and sniper boosts, has a potential damage of 438.75 with NO PENALTY! Not much is going to survive that much, and no amount of buffing is going to help. (except maybe light screen) Anything weak to water gets it worse, but I haven't done that calculation yet. And flash cannon deals with those pesky fairies.

With froslass, send her in when the opponent is on thier last pokemon, use taunt on the first turn, if her hp gets into the yellow or lower, spam destiny bond. (Next post)

 

[MysticSniper]

If you do that, and have one pokemon in reserve, you should win the battle.

The third pokemon is really up to you, as lolng as it can take out anything that kills kingdra.

Useing this team, you should be able to get a 20 win streak unless something goes horribly wrong. But you'll have to change the team eventually, because the maison will adapt to it at some point.