pf2e.fyi
From Pathfinder Lost Omens Gods & Magic, which isn't enabled.

Milani - Moderate Curse

CURSE

Ropes, chains, manacles, and other equipment used to bind or constrain become blazing hot in your hands, bursting into flame or melting as if engulfed in a forge. When you attempt to hold such an item, you take 2d6 fire damage and the item is destroyed.

Pathfinder Lost Omens Gods & MagicOGL