my team are at the currence max level of 25 but most of my team die befor i even come to mega froslass

invest in EV and IV on Pokemon, and things that hit ice super efficiently. Rock is the easiest imo.

Lycanroc goes crazy here. So does Shiftry (wind rider) for phase 1

I personally spammed Flash Cannon and Super Potions on my Metal Coat boosted Cryogonal.

Use ice type Pokémon since Half of Froslass moves don't have a counter to them or any at all I beat her using alolan ninetails and regular ninetails the way I beat her first stage I just spam fireblast FireBlast My GOAT never disappiont