The autocratic monarch and the high order priest of the dark god are undergoing a dreamless rest, waiting for an opportunity to retake the throne and rebuild the ancient empire. The tyranny of royal power is still engraved in their bandage-covered bodies, their decayed robes adorned with evil runes, and the bronze armor still etched with the emblem of the fallen dynasty from a thousand years ago.
The Mummy Lord is undoubtedly a powerful undead creature, but it's still a bit below those top-tier undead creatures. Its standard challenge level is not very high, not even as high as a Death Knight's.
Some powerful mages, in pursuit of eternal existence, abandon life and embrace undeath to become liches. Liches will pursue power at all costs, indifferent to the affairs of living beings unless it concerns themselves. The only things they care about are the lost knowledge and terrifying secrets drifting in the river of time.
