Blast Gauge

Blast Gauge, originally known as Blastia Gauge in Japan, or BG for short, is a recurring battle feature in the Tales series. It governs the usage of unique mechanics characteristic to different takes on Linear Motion Battle System and execution of mystic artes. When obtained, each character starts with a maximum of 3 BG, but it can be raised up to 9 BG.

Tales of Zestiria
In Tales of Zestiria, Blast Gauges govern the usage of Battle Actions for humans and seraphim, and the use of Rejuvenation and Banish Blasts for armatized humans. It is also used to perform mystic artes.

Tales of Berseria
In Tales of Berseria, Blast Gauges govern the usage of Switch Blasts and also of mystic artes.

Trivia

 * The Blast Gauge was originally named after Blastia, technological devices from Tales of Vesperia.