Mask of Memory

Uncommon1 version from The List · all sets

Cheapest version$0.75TCGplayer market price

Mystery Booster2019

Draft Booster 1 in 121 packsany version · 18% per box of 24

VersionPriceDraft Booster

The List #C14-249 $0.751 in 121 packs18% per box

"Any version" adds up the chances of each version, so it is a close estimate.