Core Set 2019 Arena Booster has no variants:
Explore this pack in Sealed.

Sheets

Sheet nonland_common (color balanced)

At rate 1/101 (0.99%)

Sheet uncommon

At rate 1/80 (1.25%)

Sheet rare_mythic

At rate 1/61 (1.64%)
At rate 1/122 (0.82%)

Sheet basic_or_common_land

At rate 1/30 (3.33%)