Wizard’s Shackle

Tiny monstrosity, neutral

Armor Class 11
Hit Points 16 (3d4 + 9)
Speed 5 ft.

1 (-5) 12 (+1) 16 (+3) 1 (-5) 11 (+0) 2 (-4)

Senses blindsight 30 ft., passive Perception 10
Challenge 1/2 (100 XP)

Special Traits

  • Arcane Sense. A wizard’s shackle can automatically detect the location of any active spell or magical item within 30 feet not hidden behind 10 feet of dirt, 5 feet of stone, 1 foot of common metal, or 5 inches of lead.
  • Magic Resistance. The wizard’s shackle has advantage on saving throws against spells and magical effects.


  • Bite. Melee Weapon Attack: +3 to hit, reach 5 ft., one creature. Hit: 3 (1d4 + 1) piercing damage and the wizard’s shackle attaches to the target. While it is attached, any time the target attempts to cast a cantrip or spell, it takes 10 (3d6) psychic damage and must make a DC 10 Constitution saving throw. On a failed saving throw, the target fails to cast the spell and if a spell slot was used, it is wasted. The wizard’s shackle can be removed as an action by the target or another creature. If a creature or creature to which the wizard’s shackle is attached attempts to remove the wizard’s shackle, the attached target must succeed on a DC 13 Constitution saving throw. On a failed saving throw, the target is unconscious for 1 minute.


This tiny creature appears to be a gray-green leech.

The wizard’s shackle is a 6-inch long, leech-like creature. Though it is small in size, it is greatly feared by spellcasters, for its bite drains arcane magic from a caster’s mind. In some rare instances, evil spellcasters have harvested these monsters and set them loose in an enemy spellcaster’s tower or laboratory.

A wizard’s shackle attacks from ambush. It favors hiding on ledges, bookshelves, doors, and other such places where it can drop on spellcasters that pass underneath it. A wizard’s shackle injects an anesthetic when it bites, so it is possible that its bite goes unnoticed (DC 12 Perception check to notice).

Section 15: Copyright Notice

Tome of Horrors © 2018, Frog God Games, LLC; Authors: Kevin Baase, Erica Balsley, John “Pexx” Barnhouse, Christopher Bishop, Casey Christofferson, Jim Collura, Andrea Costantini, Jayson ‘Rocky' Gardner, Zach Glazar, Meghan Greene, Scott Greene, Lance Hawvermale, Travis Hawvermale, Ian S. Johnston, Bill Kenower, Patrick Lawinger, Rhiannon Louve, Ian McGarty, Edwin Nagy, James Patterson, Nathan Paul, Patrick N. Pilgrim, Clark Peterson, Anthony Pryor, Greg Ragland, Robert Schwalb, G. Scott Swift, Greg A. Vaughan, and Bill Webb

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