Armor of Charred Bones

This +2 Studded Leather is held together by rows of cracked and burned bones. Three times per day as a bonus action you can cause the armor to burst into flames. This deals 1d6 points of fire damage to you and each adjacent creature. Creatures can negate this damage with a DC 13  Dexterity saving throw. If a creature is grappling you and they fail this saving throw they catch fire and continue to take 1d6 points of fire damage every round until they spend an action to douse the flames. Twice per day, you may spend a bonus action to cause thick black smoke to billow out around you. This smoke does not move after its initial summoning and all creatures must roll with disadvantage when attacking you through it. The smoke remains for up to three rounds or it can be dispersed by a natural or magical wind.  

Made from tough but flexible leather, studded leather is reinforced with close-set rivets or spikes.