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Alarm Spell vs. Illusionary magic
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<blockquote data-quote="MarkB" data-source="post: 7027954" data-attributes="member: 40176"><p>Just to point out, the Alarm spell isn't able to detect creature types, and isn't fooled by illusory appearance because it doesn't rely on appearance. It triggers if any Tiny or larger creature enters the area other than those specifically designated at the time of casting.</p><p></p><p>It's not spelled out, but I'm pretty sure it's more a matter of the designated creatures being 'tagged' when the spell is cast rather than the spell actually looking at a creature and deciding whether it matches the description of a designated 'safe' creature. Any creature not bearing the 'tag' will trigger the alarm.</p><p></p><p>What would work in these circumstances is Magic Mouth. That spell lasts indefinitely, and can be programmed to react to a fairly specific circumstance - "if anyone other than a dwarf steps within 30 feet" is well within its remit. However, you really are back to square one at that point, as the spell description says nothing of how it would perceive an illusory disguise.</p></blockquote><p></p>
[QUOTE="MarkB, post: 7027954, member: 40176"] Just to point out, the Alarm spell isn't able to detect creature types, and isn't fooled by illusory appearance because it doesn't rely on appearance. It triggers if any Tiny or larger creature enters the area other than those specifically designated at the time of casting. It's not spelled out, but I'm pretty sure it's more a matter of the designated creatures being 'tagged' when the spell is cast rather than the spell actually looking at a creature and deciding whether it matches the description of a designated 'safe' creature. Any creature not bearing the 'tag' will trigger the alarm. What would work in these circumstances is Magic Mouth. That spell lasts indefinitely, and can be programmed to react to a fairly specific circumstance - "if anyone other than a dwarf steps within 30 feet" is well within its remit. However, you really are back to square one at that point, as the spell description says nothing of how it would perceive an illusory disguise. [/QUOTE]
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