Dark Arts
Shadow Killer Practice: 3rd level You learn to combine poison and stealth to perform assassination techniques. When you deal Sneak Attack damage to a creature you may choose to forgo two of your Sneak Attack dice to make the attack a dark art.
Dark Arts save DC = 8 + your proficiency bonus + your Intelligence modifier
Envenomed Art
You attempt to poison the target. The target must make a Constitution saving throw or be poisoned until the end of your next turn.
Hallucinatory Art
You attempt to blind the target. The target must make a Wisdom saving throw or be blinded until the end of your next turn.
Vanishing Art
You feint to momentarily disappear from your target's purview. The target must make a Dexterity saving throw. On a failure, you can move up to 10 feet without provoking opportunity attacks from the target.