Bank Feeder

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This spirit is usually found near Bank Stones. These spirits come about when a Low Spirit has been around a Bank Stone for a long time. These are more powerful than Low Spirits because they feed on the magical energy that is accumulated by Bank Stones. If they sense that there is a more powerful/magically abundant Bank Stone somewhere else than their originating Bank Stone, they will move to it. While there are reports that they evolve and grow stronger with enough magical energy, no definitive reports have been made to confirm this.
While not terribly aggressive, they are incredibly territorial about their Bank Stones, and will attack anything that comes near it with fervor.