The Demon Tail is a red staff with an ornate head resembling an orb surrounded by two bat-like wings.
This crimson staff's main trait is the ability to restore Natalie's MP whenever she uses a Normal Attack. The amount of Mana replenished is equal to the damage dealt. Demon Tail increases Natalie's Attack, strengthening her Normal Attack, thus enabling to restore more MP with each strike. However this ability is offset by staff's very low bonus to Magic Attack (it actually decreases Natalie's Magic Attack until forged), making it more designed for support, rather than offensive. Demon Tail also protects Natalie against Syphon, which is arguably the most debilitating status effect for her as it prevents Natalie from using the magical abilities that she relies upon. Additionally it may inflict Syphon on foes via Unleash.