Over the course of Cobalt's journey, she was asked to slay a dragon and recover his treasure. Upon slaying the dragon, the dragon's spirit possessed her body, turning her into a dragon-like monster. Cobalt was able to break free of the possession and revert to her natural self. The dragon spirit realized the two could work together, so the two formed a small team, with Cobalt naming the dragon spirit Draghast.
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LeydenTheWolf
Very awesome design for her weapon, character, and her dragon form! X3