Evolve it to glalie but it has to be female& use dawn stone
How Do You Evolve Snorunt To Froslass In Pokemon Light Platinum?
Use a dawn stone on a female snorunt
Take a Dawn stone to a female snorunt (at any level) and it will evolve, personally hatch the snorunt, they're a lot better
You have to catch a female snorunt for it to evolve and use a Dawn stone on snorunt.