By becoming and being a spartan, it is to devote your life to learning how to kill effectively and efficiently. You will master the ways of the sword, shield, and spear. Combat is blessing for you and the thrill of it is apart of your every day life. Even when you are not fighting or learning how to, you will look to make simple tasks into competition. Your mediation is ruthless wrestling. Your relaxation is torturing others. You are a Spartan. 

Hardened Defense

At 3rd level, you may choose to use your constitution modifier to calculate your armor class, instead of your dexterity modifier, when calculating your armor class with a set of armor or clothes. 

Shield Expert

At 3rd level, you are now proficient with attacks made with a shield. Attacks made with a shield now deal 1d4 damage. If you hit a creature with a shield sized large or smaller, that creature must make a strength saving throw equal to (8 + proficiency bonus + strength modifier); the creature is shoved back 5 feet of it fails the saving throw, if it fails by 5 or more, then the creature also falls prone. 

Spear Expert

At7th level, the damage die you deal with Spears is 1d8, versatile 1d10.

Sword Expert

At 7th level, after you score a critical hit or kill an opponent with a sword, then you may make a single melee attack as a bonus action with that same sword on the same turn.

Death before Dishonor

After 10th level, for better or worse, you cannot be frightened. 

Bloodlust

At 15th level, you gain temporary hit point equal to (1d10 + constitution modifier) after every death of a hostile creature that is made within 30 feet of you that you can see. These temporary hit points last one minute or until the end of the current combat. 

Note that temporary hit points never stack, but the player can forgo the current temporary hit points to gain the new temporary hit points if they are more. 

Hardened Body

At 18th level, as a reaction to a successful enemy attack that targets you, before the damage is calculated, you may gain resistance to that attack’s damage as long as that attack was made with an attack roll and the damage type is not psychic.