Might & Magic (Macht und Magie)
Nightwists are the most commonly encountered manifestations of the Named Horror called Ristul. These Horror constructs appear as twisted strands of darkness, bending and distorting the night air as they pass through it. They may be as small as a windling or as large as a thundra beast, and they may assume any shape imagined in nightmare. Nightwists appear only in corrupted areas, around astral breaches, or in the proximity of Horror-marked characters.
Some Nethermancers are said to capture Nightwists to use their essence for the production of alchemical items. Only containers that can hold astral or magical material, such as orichalcum jars, can hold nightwists. In a pinch, a spell matrix can be used to capture and contain a nightwist. To do so, the magician makes a Thread Weaving Test against the nightwist’s Spell Defense. If the test succeeds, the nightwist is placed in the spell matrix. To release the nightwist, the magician must make another successful Thread Weaving Test against the nightwist’s Spell Defense.