As Signum attempts to dodge out of the path of the lightning, retracting her sword to reduce its conductivity, she studies the creature's motions. Definitely a full spell, making this persona a mage as well as a dragon. This was both a worst-case and a best-case scenario, in terms of the fight and Signum's objective, respectively.

The scattering bolts of the spell catch Signum - who's forgotten most of her fights with Testarossa and her lightning-using protegé - off-guard, zapping her painfully through her magical armor. She clenches her teeth to avoid crying out, looping around the dragon now that it was airborne. It was big, and obviously dangerous at all ranges, but she should be more maneuverable...

Signum's sword surges with renewed magical fire as it detonates and ejects a Cartridge for extra power. The knight continues her loop in a faster spiral, making a curved aerial charge under the dragon's wing, attempting to get behind it and stab its scaly back with her fiery sword. Not very chivalrous, but it's a dragon. Not being rent by claws is more of a priority than polite dueling.