Battle Spirits Collaboration Booster Neon Genesis Evangelion The Prelude of Quickening [BS-CB21] (Japanese)

CB21, entitled Collaboration Booster: Evangelion-The Prelude to Quickening (コラボブースター エヴァンゲリオン 胎動の序曲). It is the first collaboration pack with the Evangelion franchise. Cards based on the Evangelion series up to the latest movie, Evangelion: 3.0+1.0 Thrice Upon a Time, would be included. Characters not yet covered in the Mega Deck, including the Apostles, would be printed in the booster.

CB21 would be released together with the Mega Deck, SD62, in Japan on December 18th 2021. This set included Spirit, Nexus, Brave, and Magic cards in all six colors. This set also introduced the new families NERV, WILLE, Apostle.

It included a total of 69 cards: 26 Commons, 19 Rares, 9 Master Rares, 8 Rebirth Rares, 6 X-Rares and 1 XX-Rare.