Bain'maal, called the Dark Earth is an associate of Ama-maalier. Though he is renowned for mastery of Gattan'lier's craft and is of the Main Line Five in Tsol'teth experimentation, little else is known of him.
Considered the strongest of Underrealm shadowmancers, Bain'maal's mysterious earth-destroying abilities are an unknown quantum in the arsenal of the modern Tsol'teth. Bain'maal is legendary for slaying a worm-from-the-sky during an unspecified time (presumably during the rise of the Worldreaver). Bain'maal was sent by a displeased Tlalaiad to punish Ashtan for their temporal transgressions in the pursuit of their Second Great Work in 870 AF. A desperate Ashtan conjured the Spawn of the Unnamable Horror to combat his approach, buying time to complete their machinations in repairing their Eschaton, though he Dark Earth eventually succeeded in casting the Spawn back into the madness from which it came.