This spell is not available for purchase in Morrowind or expansion packs. Although not intended for use by the Nerevarine, it can be acquired on the PC by using the console:
Player -> AddSpell sp_glyphofweakness
- This spell is cast upon standing for 15 seconds on a trapped rug.
- Common Rug (Trapped) which its ID is ac_furn_rug_big_04_dren.
- This object is unused by the developers.