Myrmidon

Bonus Proficiency

You gain proficiency in heavy armor and shields.

Fighting Style

You gain the Defense Fighting Style. While you are wearing armor, you gain a +1 bonus to AC.

Arcane Armor

You gain the ability to enchant your armor. You can use your reaction to spend 1 sorcery point to increase the bonus to AC your armor grants you by an amount equal to half your proficiency bonus for 1 minute. When you cast mage armor or shield of faith, you can spend 1 sorcery point and increase the bonus to your AC the spell grants by an amount equal to half your proficiency bonus.

Myrmidon Spells

You add the following spells to your spellbook at the levels listed. These spells are always prepared and do not count against the number of spells you can prepare.

• 3rd armor of agathys, shield of faith
• 5th blur, enlarge/reduce
• 9th crusader’s mantle, protection from energy
• 13th fire shield, stoneskin
• 17th insect plague, telekinesis

Uncanny Dodge

At 7th level, when an attacker that you can see hits you with an attack, you can spend 1 sorcery point to use your reaction to halve the attack’s damage against you (no effect against crits). You can instead spend 2 sorcery points to negate the damage or halve the damage of a crit. 

Battle Mind

At 11th level, you can maintain Concentration on a number of spells equal to half your proficiency bonus. You must be the sole target of these spells. You can spend 1 sorcery point to double your proficiency bonus on Constitution saving throws to maintain Concentration.

War Magic

At 15th level, you can use your reaction to spend 1 sorcery point to give yourself advantage on saving throws until the end of your next turn.