Silence

From MUME

Silence is a level 17 mage spell. It prevents the target from casting spells or using any form of verbal communication (say, narrate, tell, etc). Emotes may still be used.

Syntax      : cast 'silence' <victim>
Type        : Offensive, mental
Accumulative: No
Duration    : Yes
Casting     : Long
Position    : Standing, fighting
Level       : Level 17
Class       : Magic User
Min. Mana   : 15

Example:

  > cast 'silence' sage

This spell can be learned from:

                        Sessions 
Erestor                       11
Lórien Mage Guild              4