Wednesday, August 16, 2023

DnD 3.5 to 5e Spell Conversions: Alarm, Greater

Alarm, Greater

3rd-level abjuration (ritual)


  • Casting Time: 1 minute
  • Range: 30 feet
  • Components: V, S, M (a tiny bell and a piece of fine silver wire)
  • Duration: 8 hours
  • Classes: Ranger, Wizard

You set an alarm against unwanted intrusion. Choose a door, a window, or an area within range that is no larger than a 20-foot cube. Until the spell ends, an alarm alerts you whenever a Tiny or larger creature touches or enters the warded area. This includes creatures that are moving on an adjacent plane, such as the ethereal plane. When you cast the spell, you can designate creatures that won't set off the alarm. You also choose whether the alarm is mental or audible.

A mental alarm alerts you with a ping in your mind if you are within 1 mile of the warded area. This ping awakens you if you are sleeping.

An audible alarm produces the sound of a hand bell for 10 seconds within 60 feet.


One of the spells from my conversions of the entire Dungeons and Dragons 3.5 Spell Compendium into 5e and published in Spells of Antiquity. This is one of those spells that is a situational upgrade over the lesser version. While it may be a couple levels higher, the fact that it is a ritual means that it doesn't cause too much trouble for the wizard who just might happen to have it handy in their spellbook. The big advantage it has over the lesser version is that it also warns you when someone is sneaking up to you on the ethereal plane.

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