One of the most powerful wizards in Eberron is also one of the world’s most terrifying mortals. Mordain the Fleshweaver, the subject of dark fireside tales, lives in exile in western Droaam. Though the Twelve have attempted to imprison Mordain for his attempts to master the magic of the daelkyr, few have the power to directly oppose him.
Near Droaam’s border with the Shadow Marches, Mordain’s Hall reaches into the sky like a massive malformed arm. The area that surrounds it is filled with foulspawn and other horrors of Mordain’s own creation. His servants search constantly for ancient daelkyr sites within Droaam and the Shadow Marches, and some say that the mad mage hopes to reopen the gates to Xoriat.
More than two centuries ago, Mordain d’Phiarlan was one of the Twelve, but the ambitious mage began delving into forbidden lore, choosing to experiment with the magic of the daelkyr. Though he was captured, tried, and petrified in order to expedite his trip to the prison island of Dreadhold, Mordain escaped.
Source: Eberron Campaign Guide
Not many personal grudges jeopardize the Twelve, but when a powerful wizard feels slighted, the impact can be significant. The elf wizard Mordain was banished from the Twelve more than two centuries ago because of his disturbing experiments related to the magic of the daelkyr. He dwells in Droaam now, focused on his research and plotting revenge. His reach isn’t long, but agents of the Twelve avoid Droaam if at all possible.
Source: Eberron Rising from the Last War
The wizard Mordain
(NE male elf transmuter 18) was banished from the
Twelve (see page 245) more than two centuries ago
because of the unorthodox and disturbing experiments
he conducted. Mordain seeks to master the magic of
the daelkyr, the fiendish beings who created the mind
flayers and many of the other aberrations that haunt
the depths of Khyber. Malformed flesh golems and
strange, disfigured creatures—the results of his horrific experiments—patrol the land around his keep,
Mordain’s Hall. A master transmuter and a deadly foe,
Mordain is obsessed with his work and has no interest
in the outside world. The Daughters of Sora Kell and
their followers avoid the lands around Mordain’s tower,
and he in turn leaves them alone.
Source: Eberron Campaign Setting
While the Twelve seeks to advance arcane science, its members are expected to abide by codes of ethical conduct. But there have always been wizards who believe that any sacrifice can be justified in the name of arcane progress. One of these is Mordain d'Phiarlan, now known as Mordain the Fleshweaver. As a provost of the Twelve, Mordain sought to advance the arts of transmutation in new and terrible ways. He delved into the forbidden studies of the Closed Circle of Sharn and sought to claim the powers of the daelkyr as his own. The council of the Twelve have sealed all records of his work, but people still whisper of the horrors found in his workshop when his research was finally exposed. Many wonder why he wasn't executed for these crimes; some say that his family connections were too powerful, while others suggest that the lords of the Twelve still hoped to benefit from his work -- even if they couldn't officially condone it.
Whatever the truth, Mordain was excoriated from House Phiarlan and banished from the Twelve in 797 YK. Thirty years later, rumors arose of a dark tower in the far wastes of western Breland, in the region now known as Droaam. Mordain had found a new home, and for the last two centuries he has remained in his sinister keep, shunning all contact with the outside world. The lands around his tower are filled with deadly monsters, and the tales say that these are his creations -- and that the horrors within his fortress are far, far worse.
Some say that Mordain has formed an alliance with the Daughters of Sora Kell, and that they are providing him with knowledge and resources in exchange for living weapons. But it is just as likely that the hags and the wizard have a simple truce: The hags leave Mordain alone, and he keeps his terrors from threatening their rule.
By now, Mordain should be 438 years old -- well into his twilight years. However, a few among the Twelve say that Mordain experimented on himself -- that while he is no lich, he has blended the blood of dragon and troll in his veins, and is no longer an elf in any meaningful sense of the word. Others say that Mordain is a feeble, decrepit creature, but that he never allows outsiders to see him -- he has an army of organic constructs, and projects his thoughts through these vessels. Should a party decide to face Mordain in person, the DM needs to decide whether Mordain is himself a monster -- or whether it is even possible to meet with the Fleshweaver.
Source: Dragonshard
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