Foundations Play Booster has variants:
Explore this pack in Sealed.

Sheets

Sheet land

At rate 1/20 (5.0%)
At rate 1/40 (2.5%)

Sheet common

At rate 1/80 (1.25%)

Sheet uncommon

At rate 1/101 (0.99%)

Sheet rare_mythic_with_showcase

At rate 1/70 (1.43%)
At rate 1/80 (1.25%)
At rate 1/140 (0.71%)
At rate 1/160 (0.63%)
At rate 1/560 (0.18%)
At rate 1/1120 (0.09%)

Sheet wildcard

At rate 607/101000 (0.6%)
At rate 4249/808000 (0.53%)
At rate 13/4375 (0.3%)
At rate 13/5000 (0.26%)
At rate 37/18000 (0.21%)
At rate 259/144000 (0.18%)
At rate 13/8750 (0.15%)
At rate 13/10000 (0.13%)
At rate 607/808000 (0.08%)
At rate 13/35000 (0.04%)
At rate 37/144000 (0.03%)
At rate 13/70000 (0.02%)

Sheet foil

At rate 1/150 (0.67%)
At rate 7/1200 (0.58%)
At rate 1/404 (0.25%)
At rate 7/3232 (0.22%)
At rate 3/1400 (0.21%)
At rate 3/1600 (0.19%)
At rate 3/2800 (0.11%)
At rate 3/3200 (0.09%)
At rate 1/1200 (0.08%)
At rate 1/3232 (0.03%)
At rate 3/11200 (0.03%)
At rate 3/22400 (0.01%)

Sheet special_guest

At rate 1/10 (10.0%)

Sheet foil_land

At rate 1/20 (5.0%)
At rate 1/40 (2.5%)