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

Sheets

Sheet common (color balanced)

At rate 1/121 (0.83%)

Sheet uncommon

At rate 1/80 (1.25%)

Sheet rare

At rate 1/80 (1.25%)

Sheet foil

At rate 1/235 (0.43%)
At rate 1/320 (0.31%)
At rate 3/1600 (0.19%)