Battle Spirits Advent Saga Volume 4 - The Chosen One (Booster Box) [BS43]

is the forty-third set of the trading card game. It was first released in Japan on January 27, 2018. This set included spirit, brave, magic, and nexus cards in all six colors.

It included a total of 140 cards: 90 Commons, 26 Rares, 10 Master Rares, 6 X-Rares, and 1 XX-Rare, with 3 Campaign X-Rares and 38 Revival Cards, six of which are X-Rares, and one of which is XX-Rare.