Dimensional Shackles (Bonds of Fear)

Rare

Wondrous item, rare You can use an action to place these shackles on an incapacitated creature. The shackles adjust to fit a creature of Small to Large size. In addition to serving as mundane manacles, the shackles prevent a creature bound by them from using any method of extradimensional movement, including teleportation or travel to a different plane of existence. They don't prevent the creature from passing-through an interdimensional portal. You and any creature you designate when you use the shackles can use an action to remove them. Once every 30 days, the bound creature can make a DC 30 Strength Athletics) check. On a success, the creature breaks free and destroys the shackles. This item can be found in the Dungeon Master’s Guide. These chains are etched with twisted screaming faces and clouds of fog. When placed upon a victim, they are enveloped in mist an inch thick that dampens hearing and vision passing through it. The victim is only peripherally aware of the world around them and even their loudest screams can be heard only as the softest of whispers. Occasionally shadowy forms can be seen moving through the mist, as if the victim were not alone.

Iron Bands of Billaro

Rare

from DDHC-CM Candlekeep Mysteries Book 11: Zikran's Zephyrean Tome