Guardian

The archetypal Guardian focuses on the development of techniques to protect those around them from harm. Those who model themselves on this archetype combine rigorous training with a firmly group centered mindset to ensure their allies endure.

Protect Ally

Beginning when you choose this archetype at 3rd level, as a bonus action you may protect an ally that is within 5 feet of you and impose disadvantage on any attack rolls against them until your next turn.  You must be wielding a shield.  Additionally, you have 1 + your constitution modifier available uses of this feature, after which you must finish a short or long rest before you can use it again.

Armored Savant

At 7th level, you gain +1 to your AC while wearing armor, due to extensive training in using combat stances and armor geometry to deflect blows more effectively.

Additional Guardian Fighting Style

At 10th level, you can choose a second option from the Fighting Style class feature from a limited subset.

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.

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.

Concentrate All Ire

Starting at 15th level, by striking vulnerable locations with vicious precision, your successful melee weapon attacks impose disadvantage on your target until the start of your next turn if they choose to attack anything other than you.

Armored Savant Mastery

At 18th level, you gain complete mastery of your armored form and acquire an additional +2 to your AC while wearing armor.