BlackJack.zip is a release file of the Minecraft resource pack BlackJack Cards, made for Minecraft 1.20.2, 1.20.2-Snapshot, 1.20.1, 1.20, 1.20-Snapshot. It was published on October 30, 2023 and is 0.2 MB in size. For the full description, screenshots and every other version, visit the BlackJack Cards resource pack page.
How to install: Put the .zip into .minecraft/resourcepacks (do not extract it) and enable it under Options → Resource Packs.