Arm of the forge god

A an arm made from Mithril and inscribed with arcane runes and the symbol of the forge god will re shape itself to replace either arm when Attuned the arm looks like it is made of polished metal and flexes like a flesh and blood arm.

Unarmed attacks made with the arm deal an additional 2d6 fire damage.

the arm itself is immune to fire damage and grants fire resistance to the being it is attuned to, there strength score also increases to 20.

The metal arm grants a +2 to AC as long as nothing is worn over it and it will partially integrate into any metal Armour the wearer is equipped with.

the arm grants its wielder the ability to cast spells. and grants a +3 spell attack modifier.

these spells are powered by charges the arm has a maximum capacity of 20 charges per day and regenerates 1d8+2 at dawn or when the arm is placed in a magical fire.

(spell save Dc/17)

heat metal (2nd-level version, 3 charges), fire bolt (1 charge), shield (2charges), fireball (3rd-level, 5charges).

Notes: Bonus: Armor Class, Set: Strength Score, Bonus: Spell Attacks, Resistance: Fire, Damage: Fire, the arm can be atuuned by pressing the socket of the arm against the stump of a severd arm. this prosees is incredably painful but the pain fades fast.