Spirit Blade

Assassins with a supernatural edge.

Ghost Steps

Starting at 3rd level, you gain +3 to Stealth.

Spirit Dash

When you choose this archetype at 3rd level, you gain +5 feet of walking speed.

Assassin's Spirit

Starting at 9th level, you choose your assassin spirit, and gain a benefit.

Doppelganger

You gain proficiency with the disguise kit, and immune from being Charmed.

Raven

You gain the ability to mimic any sounds you hear (somebody can tell it's mimicry if they pass an Insight DC = your Dexterity modifier + your Intelligence modifier.)

You also gain +5 Perception.

Snake

You gain +3d6 to your Dexterity based attacks, and +5 feet of walking speed.

Specter

You gain +5 Stealth, and you can cast Invisibility once per long rest.

Critical Spirit

After 13th level, you can now critical hit on a 19-20.

Elite Slaughter Spirit

When you reach 17th level, you gain a benefit from your spirit.

Doppleganger

You gain +3 Dexterity and the score's maximum, expertise with the disguise kit, and +5 initiative.

Raven

You gain +4 Dexterity and the score's maximum, and +5 to Deception, Insight, Investigation, and passive Perception.

Snake

You gain +3 Dexterity and the score's maximum, and +4d6 to Dexterity attacks.

Specter

You gain +4 Dexterity and the score's maximum, and you can cast Greater Invisibility 5 times per long rest.