Volcanic Boots (Patreon)

Wondrous item, rare (requires attunement)

These heavy boots' volcanic stones rearrange themselves to better fit your feet once you attune to them. Despite their appearance, the stones are remarkably light and comfortable, keeping your feet at a pleasant temperature. While wearing the boots, you have resistance to fire damage.

The boots have 10 charges and regain 1d6+4 expended charges each day at dawn. When you walk at least 5 feet on solid ground, you can expend 1 or more charges. Choose a 5-foot space you just walked through for each expended charge: the ground and air in a 5-foot cube in that space becomes volcanic and impossibly hot. For 1 minute, any creature other than you that enters or starts its turn in that space must succeed on a DC 15 Dexterity saving throw or take 2d6 fire damage.

You cannot walk the same path I lead. I leave only ashes in my wake.