Alara Premium Foil Booster has no variants:
Explore this pack in Sealed.

Sheets

Sheet alara_premium_basic

At rate 1/20 (5.0%)

Sheet alara_premium_common

At rate 1/221 (0.45%)

Sheet alara_premium_uncommon

At rate 1/140 (0.71%)

Sheet alara_premium_rare_mythic

At rate 2/281 (0.71%)
At rate 1/281 (0.36%)