Assassins cloak

This cloak has been enchanted with the spell Blink, you get 5 charges and roll a 1d5 every long rest to reset the charges, you can also reset one charge per kill and can't over charge. When you put the hood on... an illusion covers your face to pitch black with blood red eyes, they have disadvantages on rolls to identify, when ever you want... you can cause black smoke to surround you, and whenever you cast Blink this way, black smoke surrounds you and you dissappear... when using this cloak, you get advantage in intimidation... and can frighten people