Scheduled for release on March 26, 2027, Symphony of Heroes is the 31st set in the FFTCG Opus series. This set features protagonists from many titles across the Final Fantasy series, creating a lineup that truly lives up to the name Symphony of Heroes. In addition, a new gameplay mechanic called Level Up will be introduced. Characters with the Level Up ability can be played on top of a card with the same name already on the field by paying the required Level Up cost. This allows them to evolve into more powerful characters, just as if they had leveled up in the game.

This set will feature 28 new full-art premium cards. The highly popular Special Card this time is [31-004L] Cloud, featuring a new illustration by Rina Yoshiura from Final Fantasy VII Rebirth. The Noir card rarity, first introduced in the Hidden Hope booster pack, features [11-071L] Tifa, making this another highly desirable set for collectors.