The core booster “Oblivion of the Flash” is confirmed for release in May 13th, 2023, which will contain chiefly cards used by major characters from the “Yu-Gi-Oh! Go Rush!!” animated series, as well as game original cards for “Yu-Gi-Oh! Rush Duel”.

Rush Rare is being replaced by Over Rush Rare, and a total of 9 cards will be in the Over Rush Rare rarity, including alternates of the Ultra Rares

Oblivion of the Flash

Release Date: May 13th, 2023

67 Different Cards

1 Over Rush Rare
8 Ultra Rares
10 Super Rares
18 Rares
30 Normal

The 8 Ultra Rares also come in Over Rush Rare foiling

All Ultra Rares, All Super Rares and 6 of the Rares also come in Secret Rare foiling

176 Yen per Pack of 5 Cards, 30 Cards per Pack

Source