Quasi-Elemental Ash
Vecna
The Arch-Lich, the Chained God, the Maimed God, Master of the Spider Throne, the Whispered One, the Dying King, the Lord of the Rotted Tower, the Undying King
The Faithful of the Flame
Being a Sect of True Believers who Seek the Memories of their Immolated Power
The Magic of Ash
Being Spells Developed to make Travel on the Plane Easier, or that draw their Power from the Ash Itself.
