Strixhaven: School of Mages Draft Booster has variants:
Explore this pack in Sealed.

Sheets

Sheet sta

At rate 1/27 (3.7%)
At rate 2/225 (0.89%)
At rate 1/225 (0.44%)

Sheet lesson

At rate 137/1332 (10.29%)
At rate 1/74 (1.35%)
At rate 1/148 (0.68%)

Sheet nonlesson_common (color balanced)

At rate 1/96 (1.04%)

Sheet uncommon

At rate 1/80 (1.25%)

Sheet nonlesson_rare_mythic

At rate 1/74 (1.35%)
At rate 1/148 (0.68%)
At rate 1/222 (0.45%)
At rate 1/444 (0.23%)

Sheet foil_with_showcase

At rate 1/175 (0.57%)
At rate 1/392 (0.26%)
At rate 1/780 (0.13%)
At rate 1/1560 (0.06%)
At rate 1/2340 (0.04%)
At rate 1/4680 (0.02%)