Orichalcum

This red alloy was first forged by dwarven smiths under extreme subterranean pressures. Orichalcum armor is warm to the touch, and orichalcum blades are searing hot. An object made of orichalcum has immunity to fire damage and resistance against cold damageĀ (in addition to the usual properties for an object made of metal; seeĀ Resistance and Vulnerability).

Orichalcum Weapon (Common): When you succeed on a melee attack with an orichalcum weapon on a target against which you don't have disadvantage on the Fighting test, you can deal fire damage instead of mundane damage with the attack.

Orichalcum Armor (Uncommon): While you wear this armor, you have resistance against cold damage, and you are comfortably warm even in freezing environments.