(Unleashing) Evil Spawning Atbash

Lore
His long-awaited time has come. Atbash shatters the seal he imposed upon himself and begins the final preparations. On one night every hundred years, the three moons of Neotellus align to cause a mystical lake to reflect all of them at once, creating a total of six moons. At this time only, the lake fills with an incredible cosmic power. With this power, Atbash could create any unthinkable evil he desired, all for the sake of the Shadow King...

Acquisition
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Name origin
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Additional Info

 * End Boss of Wilderness Sprint (Chapter 60 of the Quest).
 * End Boss of The Lake's Secret (Chapter 61 of the Quest).