Hey Imayoko,
here an idea for a PURE frost deck.
T4 ist personal taste, you can also use Dreadnought or battleship (slow). I played it similar but with a green orb at T4 to get grimvine, giant wyrm and regrowth
thats only an idea and has to be adjusted for some maps.
but most maps in PVE could be played with this deck
but it is not a cheap one (frost mage, home soil, coldsnap, mountaineer, avatar of frost, stronghold, ironclad, worldbreaker gun, frost shard)....
I got ferrets a long time ago.
my nickname for the ferrets was Fellwürste ("engl. > fur sausages")
what can i say - i am a bit nostalgic - thats how i became CptFellwurst