Aether Lich
The Aether Lich (an Aether Creature) is part of the Seasonal Content. Aether Liches only spawn when the comet is visible in the sky of New Britannia (which is several months per year in real-life time, often May through September).
The Aether Lich can drop an Aether Orb as loot, whereas non-aether liches do not.
The aether lich seems to always be an aether version of Elrin Nayer, and has 21,349 health.
The Aether Lich is known to appear in the following zones.
- The Fall
- Deep Ravenswood
- Penmawr Island - appears on the beach at the East end of the map.
There maybe other zones where aether liches spawn.