Ride the Lightning

Acquisition
Signet of Capture:
 * Kunvie Firewing (Unwaking Waters (Explorable))

Trivia

 * Possibly named after the Metallica Album "Ride the Lightning"
 * In the Guilty Gear fighting game series, the character Ky Kiske has an overdrive called "Ride the Lightning." If that is the source, it should be noted the name in that game is also likely named after the Metallica album "Ride the Lightning."