Mastered Elemental Bond: Metal

The bond with your elemental companion grows, furthering your mastery of the metallic elements, making you a deadly weapon.

• Your elemental instructs you in the art of self-mastery, tempering your will, and giving you advantage on all saving throws to avoid being frightened.
• Iron Instinct: When you are targeted by an attack from a weapon or ammunition that incorporates metal as part of its general makeup, such as swords, axes, or arrows with metal arrowheads, you may use a reaction to impose disadvantage on the attack. You may choose to do so after learning whether the attack will be a success, but before damage has been calculated. You may use this ability a number of times equal to your Charisma modifier (minimum 1), regaining expended uses when you complete a long rest.
• Mastered Innate Spellcasting: You learn one of the following spells and may cast it once for free as if using a 3rd level spell slot, regaining the use when you complete a long rest: heroism, bane, hunter's mark, shield of faith, heat metal, alter self, enhance ability, hold person, warding bond, Melf's minute meteors. Charisma is your spellcasting ability for this spell. You may swap this spell for a different one from this list when you gain a level.

If you select the spell magic stone, you may only cast the spell on metal objects or rocks with a high metal component, such as ball bearings or shards of meteorite.
If you select the spell mending, you may only cast the spell upon metal objects, or you may use metal as a material with which to affect repairs, such as in kintsugi.
If you select the spell shield of faith, the protection is provided by your elemental spirit, and the shimmering field has a gold, silver, or copper sheen. When you cast this spell on yourself, the spell has a duration of up to 1 hour. When you cast the spell on a creature other than yourself, the spell ends if the target creature is further than 60 feet from you.
If you select the spell alter self, you may only use the natural weapons part of the spell. When cast in this way, your natural weapons appears as claws, spines or horns of mercurial metal, and they deal an extra 1d4 damage.
If you select the spell enhance ability, you may only use features related to physical traits (bear's endurance, bull's strength, and cat's grace). When you cast this spell on a creature other than yourself, the spell ends if the target creature is further than 60 feet from you.
If you select the spell hold person, the spell manifests as ethereal shackles and chains wrapping around the target.

You gain one additional ability, choosing from the two options listed below:

• Forged Resolve: You are able to momentarily ignore serious wounds, even to the point of holding mortality at bay. When you take damage, you may use a reaction to spend one hit die. You roll the hit die, and gain a number of temporary hit points equal to the amount rolled + your Constitution modifier + your Charisma modifier, or the amount of damage taken to trigger this reaction, whichever number is lower. These temporary hit points last for 1 minute. You gain them after you would be required to make a Constitution saving throw to maintain concentration. If the damage that triggers this reaction would reduce you to 0 hit points, you do not fall unconscious so long as you have at least one temporary hit point remaining. You cannot use this ability if the damage would be enough to cause instant death. You may use this ability once, regaining the use when you complete a long rest.
• Investiture of Steel: You are a master of channelling power through your metal melee weapons. When you use your Investiture of Iron ability, the target weapon now gains a +3 bonus to attack and damage rolls you make with it. Alternatively, you may target two separate weapons, imbuing one with a +2 bonus and the other with a +1 bonus.