Vulkan's Wrath

You endow yourself with the power of the gods of the forge through runes that appears on your body and on your equipment.

- You gain 100 temporary hp, if any of these remains when the spell ends, they are lost.

as long as you have this pool of temporary hp you gain the following benefits :

- you have immunity to fire damage but vulnerability to cold damage.

- You add your spellcasting modifier to your AC.

- the first time a creature moves within 5ft of you or when they start their turn there, they must do a constitution saving throw, they take 1d10 fire damage on a failed save or half as much on a successful one. if they carry any metal object the damage is 2d10 fire damage instead and, if it's a failed save, they must drop the object if they can. if they can't, they'll take an additional 1d10 fire damage for each turn they spend within 5ft of you, to a maximum of 7d10.

- additionally, every nonmagical metal object within 5 ft of you that isn't worn or carried starts melting. If it's a metal weapon it takes a permanent and cumulative −1 penalty to damage rolls. If its penalty drops to −5, the weapon is destroyed. if it's a metal armor or a metal shield, it takes a permanent and cumulative −1 penalty to the AC it offers. Armor reduced to an AC of 10 or a shield that drops to a +0 bonus is destroyed. if it's any other metal object, 1 foot cube of it is destroyed.

Once the temporary hp pool is consumed, the spell ends.

At higher levels. When you cast this spell using a spell slot of 7th level or higher, the Temporary hp increase by 25 and the maximum dice increase by 1 (8d10 at level 7th, 9d10 at level 8th, 10d10 at level 9) for each slot level above 6th.