Ghost Samurai

Courageous warrior who died in battle but still lives on.  Your blade guides you to your destiny.  Trained in swordsmanship and martial arts.  Always follow your code till the end, that was long ago.

Ghost of the dungeon.

At level 3, Your characters skin goes into a transparent shadow, leaving only your eyes glowing white with rage. Your armour still visible, your blade still glinting in the light of your eyes. Only for 2 more goes.

Warrior spirit blast.

At level 7, Stabbing your blade into a near surface. Erupting this surface with ghostly energy that'll push opponents back 10ft and deal 7 damage.

Ghost blade.

At level 10, Your blade enlightens with smoke from the spirits before you, and deals a extra +3 damage to any attack. 

Archery

You gain a +2 bonus to attack rolls you make with ranged weapons.

Defense

While you are wearing armor, you gain a +1 bonus to AC.

Dueling

When you are wielding a melee weapon in one hand and no other weapons, you gain a +2 bonus to damage rolls with that weapon.

Great Weapon Fighting

When you roll a 1 or 2 on a damage die for an attack you make with a melee weapon that you are wielding with two hands, you can reroll the die and must use the new roll, even if the new roll is a 1 or a 2. The weapon must have the two-handed or versatile property for you to gain this benefit.

Protection

When a creature you can see attacks a target other than you that is within 5 feet of you, you can use your reaction to impose disadvantage on the attack roll. You must be wielding a shield.

Two-Weapon Fighting

When you engage in two-weapon fighting, you can add your ability modifier to the damage of the second attack.

Ghostly critical.

At level 15, Ghosts and spirits of warriors before you increase your critical hit to 17-20.

Beyond the grave of warriors.

At 18th level, after death the ghosts of brave warriors who have dies in battle help you regain consciousness. You regain 10hp with out using any saving throws.