Erinyes

Demonic based fight maledic. Can only ever cast Elemental Weapon and Spiritual Weapon, and cannot learn other spells.

Know thy enemy

Beginning when you choose this archetype at 3rd level, after the 2nd round of combat your "to hit" increases by +1 at the end of each of your 2nd turns after the previous effect.

Demonic Defense

Starting at 7th level, after every round of combat ends your AC increases by +1 with a cap of half your CON score rounded down.

Improved Fighting Style

At 10th level, you can choose a second option from the Fighting Style class feature. Additionally, your "Demonic Defense" no longer has a cap, as well as your "Know thy enemy" triggers after every round of combat.

Archery

You gain a +2 bonus to attack rolls you make with ranged weapons.

Defense

While you are wearing armor, you gain a +1 bonus to AC.

Dueling

When you are wielding a melee weapon in one hand and no other weapons, you gain a +2 bonus to damage rolls with that weapon.

Great Weapon Fighting

When you roll a 1 or 2 on a damage die for an attack you make with a melee weapon that you are wielding with two hands, you can reroll the die and must use the new roll, even if the new roll is a 1 or a 2. The weapon must have the two-handed or versatile property for you to gain this benefit.

Protection

When a creature you can see attacks a target other than you that is within 5 feet of you, you can use your reaction to impose disadvantage on the attack roll. You must be wielding a shield.

Two-Weapon Fighting

When you engage in two-weapon fighting, you can add your ability modifier to the damage of the second attack.

Superior Arsenal

As no weapons or armor are equipped to you, you gain three longswords that can be used at your disposal. These longwords are magical, if thrown they teleport to your back at your discretion. If you hit a creature with one of the longswords you can use a bonus action to hit the creature with a 2nd longsword if that hits you can use a bonus action to hit the creature with your 3rd longsword.

Survivor

At 18th level, you attain the pinnacle of resilience in battle. At the start of each of your turns, you regain hit points equal to 5 + your Constitution modifier if you have no more than half of your hit points left. You don’t gain this benefit if you have below 0 hit points.