Volcanic Plate
Heavy Armor, Unwieldy, Magical, Epic, Essence 30
Base: Full Plate Mail
This suit of plate mail is made from pure obsidian and is covered in veins of faintly glowing red crystal. You are immune to fire damage but gain Vulnerable Cold 1. Additionally, you can activate the Volcanic Plate, which gives off an intense heat. This heat causes highly flammable objects that are not being worn or carried to catch fire. Any creature that starts its turn within 5 ft of you takes 1d6 fire damage while this feature is active.