[Stuck trying to defeat Team meteor at Fiore mansion.]

Thank you everyone for helping me out and giving tips, I finally beat them! 

[Stuck trying to defeat Team meteor at Fiore mansion.]

I really need help, I have been trying to defeat team meteor at Fiore mansion for a few days now and nothing seems to work. 

My team is: 

- Ampharos level 73

- Delphox level 73 

- Blastoise level 73

- Donphan level 73

- Mamoswine level 73 

- Chesnaught level 73 

 

Since I'm not really good at multiple battles after another, was my question if someone wants to look at my save file and try to beat them for me. 

Please help me out...