Is this a good team Charizard Blastoise Venusaur Empoleon mewtwo and mightyana all lv 100

If You've known that your team is weak against Electric-Steel pokemons.Also if that is the opponent is a Electric-Steel lover and even so 1 of the foe's Pokemon know Rock Tomb,rock throw or Etc.,,Then you are trapped in a dead end unless u hav hi Def & Sp.Def and Charizard-Hi Sp.Atk & Atk for Sacred Fire,Flamethrower etc.,,so shall win,Ok?And last advice try to make the move remeberer or whatever u cal him,ask him to make Venasaur remember Sleep powder for that battle i talked about and also for mr purposes.Alright and thanks then for my advice.
thanks random dude, I'll bare all that in mind......i think. plus I'm no longer sure on using mightyana. any suggestions?