Approach of the Second Sun
Strixhaven: School of Mages2021
Draft Booster 1 in 215 packsany version · 15% per box of 36
Set Booster 1 in 178 packsany version · 16% per box of 30
Collector Booster Best odds1 in 51 packsany version · 21% per box of 12
VersionPriceDraft BoosterSet BoosterCollector Booster
Showcase (Strixhaven Mystical Archive) #1 $7.851 in 225 packs15% per box1 in 201 packs14% per box— not in this booster
Showcase (Strixhaven Mystical Archive) · Foil #1 $15.021 in 4,680 packs0.8% per box1 in 1,560 packs1.9% per box1 in 101 packs11% per box
Borderless (Strixhaven Mystical Archive) · Foil #64 $25.55— not in this booster— not in this booster1 in 101 packs11% per box
"Any version" adds up the chances of each version, so it is a close estimate.