The Darkened Reflection of the Shadowfell

The Darkened Reflection of the Shadowfell was created from Viskara's sorrow and depression at the beginning of The Schism.

It is a plane of deep sadness, drowning the feelings of any who visit. Ruled by Ialdir, The Sorrowful Lady, the Shadowfell is a almost perfect reflection of what The Material Plane would look like if it had been destroyed and left in ruin, likely what Viskara had planned for in the Schism.