Your yearly Manga card release.
Premium Pack 2020 is a Booster containing cards that appear in the manga that are published in V Jump.
It will go on sale early on December 21st to 22nd, 2019 at Jump Festa 2020
It goes on sale for general release on February 22nd, 2020
4 Cards per Pack for 150 Yen
10 Packs per Box
No clarification on Rarities.