Buried Warrior

Headless.
Due to the Headless nature of the Buried, they have disadvantage on all Wisdom (Perception) checks."To complete their ritual, the Buried joined a mass suicide via decapitation. Some would try and leave before this, but were forced to participate by others."

Shield.
These warriors carry shields, granting them +2 AC.

Longsword.
Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 6 (1d8 + 3) slashing damage.

Javelin.
Ranged Weapon Attack: +4 to hit, range 30/120 ft., one target. Hit: 5 (1d6 + 3) piercing damage.

Spirit Walk.
As an action, instantly move to a point within 15ft as long as there is space. You also enact the “dodge” action freely. "The Buried disappear and reappear at a location nearby in a cloudy haze of chilly, blue mist."

Spirit Charge.
As an action, once per day, move to an enemy within 15ft that can be seen and you can fit in. Afterwards, the enemy (if they are equal size or smaller) must also succeed a DC12 Strength (Athletics) or DC12 Dexterity (Acrobatics) roll or be knocked prone. "The Buried disappears and reappears with a strong gust of chilly wind, knocking back their foe."

Spirit Travel.
As a reaction to being attacked, or an enemy moving next to you. Instantly move to a point within 15ft as long as there is space.

If the enemy attack has enough range and can still feasibly hit you, it is made disadvantage. Otherwise, the enemy rolls a DC12 Dexterity ability check, on a success, the enemy can cancel the attack and regain any spent resources/actions. If the enemy fails, the attack continues, but misses automatically.

Shield Sacrifice. 
As a reaction to taking damage, this Warrior may sacrifice their shield to reduce taken damage by 5. The shield then becomes destroyed and the Warrior will wield their weapon with both hands, increasing their Longswords damage to 1d10+3.