is....

[dr.goku]

a lv 30 frosslas a unob swear to god did not get it from a swap

[CChen28]

no cuz you can evolve from a snorunt

[dr.goku]

it's a shiny I made a mistake

[CChen28]

then i think it is a unob....

[abhiraj005]

Yup, it is a unob.

[Verb]

Simple answer. It is a unob. Any forms of Snorunt are unob, and any evolutions of Snorunt are unobs.

[abhiraj005]

Simple answer. It is a unob. Any forms of ShinySnorunt are unob, and any evolutions of ShinySnorunt are unobs.
now its better

[MaDeMoiSeLLe]

A Shiny Froslass used to be a worthwhile unob, until it was set as a Promo months ago. But yes, they are not available through Secret Swaps.

[Destiny]

It's a unob that cannot be obtained anywhere in the game, except for Buy/Trade. It was an old promo from Team Stats. You cannot get them from swap...