Though it lacks a 100% physical damage reduction, it boasts decent elemental defenses and resistances, as well as high Stability. However, much like the other Mastodon equipment, it also boasts a high Strength requirement.
As the description states, the shield is imbued with the power of Lightning, granting it more damage potential, as well as a very high raw resistance to lightning attacks.
Infusing this shield with a Boltstone will grant it a 100% damage reduction to Lightning attacks, an effect similar to that of the Watcher's Shield, while still being able to provide a solid defense even after infusion.
Reinforced with Titanite.