Core Set 2021 Collector Booster has no variants:
Explore this pack in Sealed.

Sheets

Sheet foil_all_showcase

At rate 8/95 (8.42%)
At rate 4/95 (4.21%)
At rate 2/95 (2.11%)
At rate 1/95 (1.05%)

Sheet foil_common_uncommon_showcase

At rate 2/15 (13.33%)
At rate 1/15 (6.67%)

Sheet rare_mythic_showcase

At rate 2/35 (5.71%)
At rate 1/35 (2.86%)

Sheet common_uncommon_showcase

At rate 2/15 (13.33%)
At rate 1/15 (6.67%)

Sheet foil_rare_mythic

At rate 4/339 (1.18%)
At rate 2/339 (0.59%)
At rate 1/339 (0.29%)

Sheet extended_art

At rate 1/49 (2.04%)
At rate 1/98 (1.02%)

Sheet foil_showcase_basic

At rate 1/5 (20.0%)

Sheet foil_uncommon

At rate 1/80 (1.25%)

Sheet foil_common_or_basic

At rate 1/126 (0.79%)