Iron Core Sorcery

Armor Affinity

At 1st level, you gain proficiency in heavy armor, suffer no movement penalties in it, and can don or doff it as an action.

Iron Guard

Also at 1st level, you can use your action to form a ward of magical metal around a creature you can see within 30 feet. Whenever a guarded creature takes bludgeoning, piercing, or slashing damage it is reduced by an amount equal to your proficiency bonus + your Charisma modifier. You can use an action to move this benefit to another willing creature that you can see within range. You may guard yourself.   You can guard one creature with this feature. At 5th level, you may guard two simultaneously, and may guard three at 14th level.

Expanded Spell list

You learn the following spells at the indicated sorcerer level, and they are considered sorcerer spells for you. You also learn the sword burst cantrip, which does not count against your number of cantrips known.

Level	Spells
1st	entangle, shield
3rd	heat metal, spiritual weapon
5th	Leomund's tiny hut, Melf's minute meteors
7th	death ward, fabricate
9th	hold monster, steel wind strike
11th	blade barrier, globe of invulnerability

 

Hammerblow

Starting at 6th level, your spells strike like weapons of war. When you damage a creature with a spell you can expend 2 sorcery points to push it up to 15 feet in a straight line from the spell's point of origin. You also gain resistance to poison damage.

Core Infusion

At 14th level you gain the ability to absorb metal to bolster your allies. During a short rest you can absorb 1 cubic foot of metal, which destroys the material and infuses up to 6 willing creatures. Infused creatures have their current and maximum hit points increased by 15 and gain a +1 bonus to their Armor Class until they complete a long rest. You can use this feature once per day.

Arcane Conduction

Beginning at 18th level you choose a damage type for guarded creatures to resist, choosing from lightning, fire, cold, radiant, necrotic or force. When a guarded creature takes damage of the chosen type you can use your reaction to channel the energy around the metallic ward into a protective barrier. The guarded creatures gains temporary hit points equal to the damage taken.   While they have those temporary hit points and roll damage, the creature can choose to remove any remaining temporary HP and discharge the energy, adding damage to the attack equal to your sorcerer level, of the type that triggered this feature.