Fiendish planes is a collective term for the evil-aligned planes of existence in the World Tree cosmology.
“The Supreme Throne is the realm in which Cyric, the Prince of Lies, holds dominion. After the...Supreme Throne
“Nishrek was a fiendish plane in the World Tree cosmology model and later an astral dominion in...Nishrek
“Dismal Caverns was an Astral dominion in the World Axis cosmology model. Prior to the...Dismal Caverns
“Blood Rift Basic information Traits The Blood Rift was named for the rift that the River of...Blood Rift