Andica "The Weevil" Greenhill

Legendary Resistances: Andica has 3 legendary saves he can use if he fails a save.

Crazed Mind. The killer has advantage on saving throws against being charmed, frightened, paralyzed, stunned, or put to sleep.

Fast Reflexes: Andica can use his bonus action to dash.

Shadowy Step. Andica can step in and out of the shadows around him. As an action, he can magically teleport, along with any equipment he is wearing or carrying and any creatures he has grappled, up to 150 feet to another shadow.

Chilling Vanish. As an action, Andica becomes one with the shadows and magically becomes invisible for up to 10 minutes or until immediately after he makes an attack roll.

Mutilating Attack. Once per turn, Andica deals an extra 14 (4d6) damage when he hits a target with a weapon attack and doesn't have disadvantage on the attack roll. He does not get this on Legendary actions.

Multiattack. Andica makest three dagger attacks.

Saw-Toothed Dagger. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 6 (2d6 + 4) piercing damage (14 (4d6)  if adding sneak attack), and the target must make a DC 15 Constitution saving throw or be wounded. 

At the start of each of the wounded creature’s turns, it takes 1d4 necrotic damage for each time you’ve wounded it, and it can then make a DC 15 Constitution saving throw, ending the effect of all such wounds on itself on a success. Alternatively, the wounded creature, or a creature within 5 feet of it, can use an action to make a DC 15 Wisdom (Medicine) check, ending the effect of such wounds on it on a success. Any damage lost to wounds can only be regained with a long or short rest.

Arm of the Wretched Researcher: Melee Weapon Attack +7 to hit, deals 3d6 necrotic damage on hit and the victim makes a DC 15 Wisdom Save or be stunned until Andica's next turn.

Echoes of the Flesh. When Andica successfully attacks and hits a target with blood and flesh, he can use his bonus action to ingest the blood or flesh, healing him 2d6 hp and to learn a few things about the victim: 1) What is their current emotion? 2) What desire weighs heavily on their mind? 3) Who on this world matters to them most?

Andica can take 3 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature’s turn. Andica regains spent legendary actions at the start of his turn.

Saw-Toothed Dagger. Andica makes an attack against one creature within 5 feet of him.

Shadowy Step. Andica can step in and out of the shadows around him. As an action, he can magically teleport, along with any equipment he is wearing or carrying and any creatures he has grappled, up to 150 feet to another shadow.

Chilling Vanish. Andica becomes one with the shadows and magically becomes invisible for up to 10 minutes or until immediately after he makes an attack roll.