Solborn is a playable Memento in the Vow of Iron gamemode. It is unlocked by destroying the throne of Zi'eer, the Fourth Prophet in his fight.

This Memento gives the user access to a spawnable Phoenix that normally acts similarly to a campfire, but can be commanded to attack. Additionally, a lot of this Memento's abilities use the Heartfire Gauge, a gauge that lies above your posture bar, similar to Specter Path's Spectral Gauge.

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