Bo Jackson Battle Arena, Inc. will release Bo Jackson Battle Arena 2026 - Ken Griffey Jr. Edition, a new TCG booster set, into retail in November 2025.

Bo and the gladiators in his Battle Arena are back for a second helping of the radioactive hot dogs that gave them super powers (see "Bo Knows TCGs"). However, this time, Bo has roped some of his former and current MLB buddies into the battle; the headliner being Mariners legend Ken Griffey Jr. The retail edition of the newest booster/hobby box for this set is exclusive to brick and mortar stores, it includes all sorts of Inspired Ink Autographs. 

The following celebrities and athletes are scheduled to appear in this set as Inspired Ink Autographs: Ken Griffey Jr., Bo Jackson, Giannis Antetokounmpo, Elly De La Cruz, Flavor Flav, Julius Erving, Troy Aikman, Mariano Rivera, Pedro Martinez, David Ortiz, Patrick Ewing, Miguel Cabrera, and more. This set comes in three different product SKUs, a Jumbo Hobby Box, Hobby Box, Double Mega Box, and a Blaster Box. There over 350 cards to collect in this set, including various parallels.