Knight of the Borrowed Dark

You have been cursed from birth. Your life was largely normal, up until your 13th birthday, during which, you burst into an eruption of flames, before eventually falling unconscious. After awaking, you had a small piece of iron replacing the flesh of the center of your dominant hand, about the size of a small coin. 

You gain the ability to cast from an extensive list of fire based spells, but this causes your flesh to slowly turn to pure, black iron. There is no known way to remove this iron. The minimum % of your body that is iron at the start of your adventure is 0.1%

A character who's skin turns 100% Iron dies, their body becoming a statue.

Spell List

Lvl 1: Create Bonfire - 0.02%.  Fire Bolt - 0.3%.  Produce flame - 0.26%.

Lvl 2:Burning Hands - 0.6%. Hellish Rebuke - 0.5%. Searing Smite - 0.4%.

Lvl 3: Aganzzar's scorcher - 0.8%. Flame Blade - 1.2%. Flaming sphere -  0.7%. Heat Metal - 1.3%. Scorching ray - 1%. Misty step - 0.3%( Acompanied with a dc 10 con save or disadvantage on next action.)

Lvl 4: Fireball - 2%. Flame arrows - 0.6%. Melf's Minute Meteors - 1.6%.

Lvl 5: Fire shield (flame only) - 0.9%. Wall of Fire - 1.1%.

Lvl 6: Immolation - 2% Investiture of Flame - 2.4%. Fire strom - 1.6%

Lvl 7:  Meteor Storm - 10%.

 

 

Spell Level	Spells
Cantrip	create bonfire, fire bolt, produce flame
1st	burning hands, hellish rebuke, searing smite
2nd	aganazzar's scorcher, flame blade, flaming sphere, heat metal, misty step, scorching ray
3rd	fireball, flame arrows, melf's minute meteors
4th	fire shield, wall of fire
5th	immolation
6th	investiture of flame
7th	fire storm
9th	meteor swarm

Misty step is re-flavoured as " The Art of Aperatua". The cast tears open a hole in reality and reappears at their chosen location. This does however, come with considerable stress, and requires a con save, or else they will have trouble readjusting when they reappear.

The fire inside burns to escape. Every turn in combat you take, roll a D20. If you roll a 1, you must cast a spell of either the highest or second highest level you can acquire from this background. On an roll other then a 1, increase the number to 2 or lower. This continues until you cast a spell from this background, either due to this effect or of your own will, at which case it returns to a 1. This number carries over between all encounters, even after long rests.