High Spirit

Coming from a Bank Feeder, these uncommon undead are difficult to predict. While they lose a lot of their monstrous sides from when they were Bank Feeders, they still generally attack anything they see. They might have a small pause as if contemplating something when they see other living things. As such it is advised to take that opportunity to get away from them as they are several times more powerful than their previous stages.
They tend to float around almost aimlessly; though once they sense a Bank Stone nearby, they will slowly go to it and consume whatever magical energy is inside of it. If some Low Spirits are around they will generally leave them alone. However once it spots a Bank feeder, it will usually go feral and attack them until they are dead, consuming the Bank Feeder as much as possible before it disintegrates into dust. It is utterly unknown why they do this.
Some have been observed going close to Thinsilver Forest, but tend to come back out quickly or simply not enter at all. They also tend to stay away from Blue Magi in general. It is also unknown why they do this though it's been speculated that maybe it's because they fear Blue Magi or don't like to be controlled by them.