Mana Forge

The Mana Forge was a small planar realm within Bhaal's realm in the Lower Planes, created for the purpose of focusing his scattered essence from his Bhaalspawn children after his death.

Description
It consisted of only a few relatively small, circular platforms that floated in nothingness, although gravity operated normally on top of them. Four smaller platforms existed just to feed energy into the larger central one, where it was focused on a column of green light. Amelyssan, in her attempt to absorb the power into herself, floated within the column.

Defenses
The four platforms were each protected by different, summoned guardians, some of them extremely powerful, such as elemental princes and a fallen solar. >

History
In 1369 DR, the Mana Forge was the stage for the final confrontation between Gorion's Ward and party and Amelyssan. Gorion's Ward's party moved there after dissolving the Pocket Plane, and had to fight Amelyssan several times. After each battle, she retreated back into the pillar of energy to recover. Cutting off the lesser energy sources one by one forced her out again, until she had none left and fought one final time.

After she was defeated for the last time, a Solar appeared and asked Gorion's Ward to choose whether to give up the essence of Bhaal and become a mortal or possess all of it and become a god—either the new Lord of Murder or a force of balance and good, turning shadow to light.

In either case, the Mana Forge would subsequently explode spectacularly, finishing Amelyssan off.