Innistrad: Crimson Vow Arena Booster has variants:
Explore this pack in Sealed.

Sheets

Sheet sfc_common (color balanced)

At rate 1/90 (1.11%)

Sheet dfc_common

At rate 1/10 (10.0%)

Sheet sfc_uncommon

At rate 1/60 (1.67%)

Sheet dfc_uncommon

At rate 1/23 (4.35%)

Sheet sfc_rare_mythic

At rate 2/121 (1.65%)
At rate 1/121 (0.83%)

Sheet dfc_rare_mythic

At rate 2/27 (7.41%)
At rate 1/27 (3.7%)