Barrier Mage

Most mages spend their entire lives locked away in magical towers and libraries, studying the very nature of magic to gain power and unravel the essences of the universe, but what of the magically gifted that, as children, crave knowledge all the while dreaming of heroes in shining armor? What of the mages that prefer the call of battle and the blaring horns of war? It is from that call, for that purpose, that barrier mages pursue magic. Practitioners of arcane arts dissimilar to their peers in their studies, barrier mages do not scorn learning from books, instead choosing to focus their efforts and talent on protecting others and fighting on the battlefield. While still fully capable of casting spells of a great variety like any other wizard, a barrier mages talents lie in their ability to defend themselves and others in combat. While still not as hardy as many barbarians and fighters, no barrier mage worth their salt would fall to attacks of a lesser caliber, capable of and often closing the distance between themselves and their opponents to cast spells from up close or afar while protecting their allies from harm all the same.

Arcane Armor

2nd-level Barrier Mage feature

The barrier mage gains the heavy armor proficiency and may use this feature to don or doff heavy armor as a bonus action. 

4th-level Barrier Mage feature

Beginning at 4th level you may make an unarmed armed attack as a bonus action, when making unarmed attacks you may add your intelligence modifier to the attack and damage rolls.

6th-level Barrier Mage feature 

Additionally the barrier mage gains access to a pocket dimension large enough to store a suit of heavy armor, during a long rest the wizard may attune a suit of heavy armor to this pocket dimension from which they may use this feature to don or doff the armor as a bonus action.

Shield of Salvation

6th-level Barrier Mage feature

At 6th level you gain the ability to increase the duration of the shield spell by one turn for every 2 levels of spell slot expended in its casting.

Additionally you may cast the Shield spell upon an ally instead of yourself as a reaction.

Astral Aegis

10th-level Barrier Mage feature

Starting at 10th level you gain resistance to ranged attacks, suffering half damage upon a successful attack. This does not include attacks that require a saving throw or that affect more than one target.

12th-level Barrier Mage feature

At 12th level you gain additional resistance to bludgeoning, piercing, and slashing damage from non-magical weapons.

Impenetrable Field

14th-level Barrier Mage feature

As a reaction you may use this feature to gain immunity to all damage for one round, this damage immunity excludes thunder and psychic damage.

Once you use this feature, you can’t do so again until you finish a long rest.