Sentinel

Many of the city protectors are Sentinels and are vigilant in defending citizens and all that fall under their banner. They have been the protectors of kings and nobles alike for millennium. Not a single soul has broken their armour even when they are down their armour holds. they can also be protectors of the outer reaches of kingdoms. these are noble knights of all and protectors of the weak you cannot bribe or cheat them out of deals they are noble. you must have a shield to use this subclass

Vigilant

starting when you choose this architype at level 3 you gain a proficiency in perception and investigation. you will also gain a +1 in your AC  

Protector

when you reach 3rd level when you see someone within 10 feet of you get attacked you can jump in to defend them without provoking an opportunity attack if an enemy is attacking you. you will act as their defense.  

Shielding

at 7th level you can create a magical shield Infront of all your allies within 30 feet of you. You can do this twice per short/long rest the shield is destroyed if the enemy rolls a critical hit. the magical shield will give the allies +1 AC and 2d4 temporary HP. if the ally moves out of the 30-foot range they cannot regain it until the feature is used again 

Advanced Shielding

starting at level 10 your Shielding ability is now a solid shield that appears Infront of the allies affected. the shield will be at the perfect height for the affected and will float in front of them, so they don't have to hold it.

One for all

at level 15 you can create 2 magical soldiers with 50 HP and 16 AC they have a mace and have at +3 modifier to attack. these soldiers last until they're destroyed, or they travel 60 feet outside of the Sentinels reach. you can only use this once per long rest

All for one

at 18th level the amount of your magical soldiers is upgraded to 4 and you can now use them 2 times per long rest. there HP is upgraded to 100 and AC is now 17