The Magic Mouth spell allows the caster to store a message within an object. One of my players asked me to define a message as he wanted to store a captured monster's roar as evidence, so I dictated that the spell could hold and recite any audible noise provided it was not more than 25 distinct noises and did not exceed the 10-minute mark as specified in the spell. This seemed reasonable to me until he asked to store a shatter spell. Shatter is a spell that when cast emits "A sudden loud ringing noise" that will damage nearby creatures and objects. Because the effects of the spell are entirely vocal, could you store a shatter spell inside a magic mouth, and if not, to what extent can you store no-traditional messages such as monster noises and other audible cues that don't specifically convey any message?


1 Answer 1


Magic mouth cannot be used to record anything except for the sound of your own voice speaking words.

Magic mouth defines "message" for us:

speak the message, which must be 25 words or less

Non-descript noises, grunts, growls, sonic booms, and the sound of a shatter spell are not words, so are not eligible for storage in a magic mouth.

Further, magic mouth states:

You implant a message within an object in range, [...] speak the message [...]

[...] a magical mouth appears on the object and recites the message in your voice and at the same volume you spoke.

Magic mouth cannot be used to record anything except for the sound of your own voice speaking words, and doesn't produce any sound except the sound of your own voice, speaking those words, exactly as you recited them when you cast the spell.

  • \$\begingroup\$ This is correct. Like, as a DM, I'd allow a magic mouth to record all your ums and uhs and other vocalized non-word sounds, but it still has to be you saying it. \$\endgroup\$ Commented Apr 6, 2022 at 19:46
  • \$\begingroup\$ It may be useful to remember that it reproduces those words as you spoke them. So if you sing those words then magic mouth also sings those words. \$\endgroup\$
    – ValhallaGH
    Commented Apr 6, 2022 at 20:25

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