Quartet | Mythic Sword

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Story:

A series of train robberies leads to evidence of a government conspiracy. A mysterious deck of cards gives a young girl a vision of another world. A fleet of deadly airships burns a path across the Imperial frontier. The world’s unlikeliest hero manifests tremendous magical power. These stories intertwine in the world of Quartet. Before it is all over, the eight heroes will uncover how a secret, centuries-old conflict literally reshaped the world. Then they will have their own decision to make about the destiny of magic.

Combat:

Eight characters fight against enemies in turn-based combat. The player can deploy four characters at a time, with the ability to swap in any of the four reserve characters. Swapped characters are able to immediately take a turn. While characters are in the reserve, they continue to regenerate their AP, allowing tactically savvy players to hit the enemy with a never-ending stream of their best attacks.