What do you guys think about this team for the battle maison in pokemon X/Y

Timid Mega Gardevoir, Telepathy, 252 Sp. Atk, 252 Speed

Adamant Garchomp, Rough Skin, 252 Sp. Atk, 252 Speed

Timid Mismagious, Levitate, 252 Sp. Atk, 252 Speed.

Jolly Lapras, Water Absorb, 252 HP, 252 Sp. Atk

Adamant Talonflame, Galewings, 252 Attack, 252 Speed.

Jolly Weavile, Pressure, 252 Attack, 252 Speed.

And yes they all have perfect IVs