Guardian

"I was wary of hiring her for protection on my visit to Teardock, but her use was proving when both her and I came back unscathed, and several pirates with shield size dents in their heads."

Guardians are defensive fighters that are proficient in defending themselves and their allies. They also know how to use their shields as a weapon, being able to distract enemies with it to draw their fire. 

Protector

When you take this subclass at 3rd level, you learn how to use your shield in a unique way depending on the type of shield you are using.

Buckler- When hit by a melee attack whilst wielding a buckler, you can use your reaction to reduce the damage by an amount equal to your proficiency bonus

Shield-  After making an attack with a melee weapon whilst wielding a shield, you may use your bonus action to make an attack with your shield. The attack uses your strength modifier for attack and damage rolls. The attack deals 1d6 Bludgeoning.

Tower Shield- As a bonus action, you can enter a defensive stance that lasts until the start of your next turn. While in your defensive stance, you can use your reaction to make a melee attack against a creature that moves more than 5 feet while within your reach.

Additionally, if an ally is attacked within 5 feet of you, you can use your reaction to block the attack, you can add your shield's AC to their AC for that attack.

 

Anchor Howl

At 7th level, you learn how to catch the attention of your enemies.

As a bonus action, you can shout out in a 30 foot sphere around you, any hostile creature in this area must make a wisdom saving throw or be taunted, until the end of your next turn. A creature with an Intelligence of 3 or less passes this saving throw automatically.You can do this an equal amount to your Constitution modifier per long rest.

The DC for this saving throw is 10 + your Constitution modifier + Your proficiency bonus.

Unaturally Armoured

At 10th level, you gain special benefits when wearing heavy armour.

-Once per long rest, as a reaction, you can add your Constitution modifier to your AC when hit by an attack.

-If you aren't incapacitated, you can add your shield's AC bonus to any Dexterity save made against a spell or other effect that affects only you.

Castle of Stone

At 15th level, you gain the ability to quickly gain an indomitable defense. As an action, you can turn yourself into stone. You gain temporary hit points equal to your fighter level + your constitution modifier + your proficiency, and your AC becomes 20 if it is below 20 already. You cannot move or take actions until your temporary hit points run out, you have resistance to Bludgeoning, Piercing and Slashing damage and disadvantage on Dexterity saving throws. If you used your 'Anchor Howl' ability before this, they effect lasts until you run out of temporary hit points.

Strength of Mind & Body

At 18th level, your mental strength is just as good as your physical strength. You have advantage on Wisdom and Intelligence saving throws. You can also add your Proficiency bonus to your AC whilst wielding a shield.