Coldsnap Draft Booster has variants:
Explore this pack in Sealed.

Sheets

Sheet common_or_basic (color balanced)

At rate 1/60 (1.67%)

Sheet uncommon

At rate 1/55 (1.82%)

Sheet rare

At rate 1/40 (2.5%)

Sheet foil

At rate 1/100 (1.0%)
At rate 1/220 (0.45%)
At rate 3/800 (0.38%)