Sword Fighter

Those who choose this martial archetype are often the most powerful sword fighters in the planes. You are a expert on the art of sword fighting, you are a truly formidable foe when weilding a sword. You are able to seemingly do superhuman feats of speed and strength with your sword.

True Fighting Style

At 3rd level you unlock your true fighting style.

Defense

While you are weilding any kind of sword, 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, if any hostile creature within 5 feet of you tries to attack a different target you may take an oppurtunity of attack against that creature.

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 weapons dice damage is doubled.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.

Two-Weapon Fighting

When you engage in two-weapon fighting, you can add your ability modifier to the damage of the second attack. You also gain the ability to use duel-wielding sword skills. When you use a sword skill you may apply the skill to your second sword, but it costs an extra spell slot, unless it is a duel-wielding sword skill.

Counter

At 7th level when an enemy hits you take the damage and if you are still concious, you may use your reaction to counterattack with whatever weapon you have in your hand. You must make an attack roll to hit and apply dmage like normal.

Attack Combo

On your turn you can use your action to roll 1d6, whatever number you get is how many attacks you make. You must make an attack roll for each attack. You can use this ability 2 per long rest. 

Sword Mastery

At 15th level you gain proficiencies in all swords. you may use any magical swords abilities even if it requires attunment. You know any swords abilities just by looking at it (damage type, how many dice, attack bonus.etc).

Improved Critical

When you choose this archetype, at 18th level, your weapon attacks score a critical hit on a roll of 19 or 20.