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

Sheets

Sheet uncommon (duplicates allowed)

At rate 4/97 (4.12%)
At rate 1/97 (1.03%)

Sheet common (duplicates allowed)

At rate 2/65 (3.08%)
At rate 1/130 (0.77%)

Sheet rare_mythic

At rate 8/197 (4.06%)
At rate 4/197 (2.03%)
At rate 2/197 (1.02%)
At rate 1/197 (0.51%)