Rune (Primordial), uncommon (transfers to any robe, tabard, or other cloth garment)
While wearing the garment that bears this rune, you can activate the rune as a bonus action and choose one of the following damage types: acid, cold, fire, lightning, or thunder. When you do so, your fists, feet, or any other natural weapons of your choice (such as horns or talons), erupt with energy corresponding to the chosen damage type, which lasts for 1 minute. For the duration, whenever you hit a target with an unarmed strike, your attack deals an extra 1d4 damage of the chosen type.
Once activated, this rune can't be used again until the next dawn.