Knight of the Skeleton Order

This knightly secular order is vastly known by their armour resembling skeletons. They take pride in the armour that may look very frightening, but these knights are trained since they enter as initiates to be the kindest of the knightly orders, and their duty is to defend the poor and those in need. And said armour being jet black to the common knight, and pearl white for the grand-master.
But when they are called to war the knights go from being the kindest to be the coldest and ruthless of them all. Before going to the battlefield the initiates, knights and the grand-master analyse the battlefield to know what weaponry to take.

Weapon and Armour's Versatility

While an initiate your instructors train you with every weapon that you can possibly fight with, they do the same with armour. And as you go to the battlefield for the first time you are encouraged to take out most of that training and prepare yourself for every adversity of the battlefield may it be a small cave or open field.

For that reason, you are not proficient with any weapon but you suffer no penalties from using them.

Intense focus

You enter a trance that makes you focus on your target, like tunnel vision. As you are so concentrated on your target you became unaware of your surroundings.

You get a 1d8+2 bonus while attacking with ranged weapons. Enemies have an advantage in melee attack made against you.

Improved Critical

Beginning when you choose this archetype at 3rd level, your weapon attacks score a critical hit on a roll of 19 or 20.

Expert Rider

While an initiate your instructors train you in cavalry assaults. From lightly armoured horses use to outflank and outride the enemy, to medium and heavily armoured horses to be able to launch a frontal attack on the enemy forces. This training included learning how to attack and defend on horseback.

Starting at the 3rd level you can choose your mount from a warhorse or a riding horse, and you can modify its equipment and armour, additionally, you have an advantage on attack rolls when on horseback when in melee combat.

Remarkable Athlete

Starting at 7th level, you can add half your proficiency bonus (round up) to any Strength, Dexterity, or Constitution check you make that doesn’t already use your proficiency bonus.

In addition, when you make a running long jump, the distance you can cover increases by a number of feet equal to your Strength modifier.

Additional Fighting Style

On the 10th, you can choose a second and a third option from the Fighting Style class feature. But you can only use two at a time

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 Critical

Starting at 15th level, your weapon attacks score a critical hit on a roll of 18–20.

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 0 hit points.