Biome: Withering Soul Sand valley

A nether biome near the bottom of the world. Has the same basalt pillars of the soul sand valley, but the fog is black and the bottom and top of this open area are covered in black sand (or Withered soul sand). This type of sand does not pull you down (souls have given up) but does make you mine slower. Fire from this soul sand is purple or white & black particles float around. Fossils & open pits also generate.
Grievestone (Nether dripstone variant): grey spikes that mostly hang from the ceiling or in pits. If player makes too much sound or shoots them, pieces can fall. When hit by them, they cause blindness.
Wither roses generate naturally here. Wither skeletons sometimes spawn. Instead of ghasts, phantoms spawn here, hanging upside down from the ceiling like bats.
Ghast lichen: a white version of glow lichen that grows on the basalt pillars & blackstone of this biome. Glow brighter if more sound is made (less light in this biome).
The caves sub-biome that generate near here could rarely have sculk, or at least a white/dried version of it.

https://feedback.minecraft.net/hc/en-us/community/posts/24156334671373-The-Mourner-Warden-variant.

Bastions/fortresses can still generate here, as well as: (Inverted Spires: Tower dungeons laced w/crying obsidian -tied to Evoker magic) There’s also rarely lava here (contact with withered soul sand causes lava to solidify into blackstone). 

When entering this biome, there is no sound. Occasionally, there will be howls of wind.