Smokestick, Gravebane (Flask)

When you take the Attack action, you can replace one of your attacks with throwing a Basic Smokestick at a point you can see within 20 feet of yourself. A 10-foot-radius dome area centered on the point fills with smoke for the next minute, which may be dispersed by strong winds. This smoke Heavily Obscures the area and blocks vision, including Darkvision. Undead that try to enter the smoke for the first time on a turn must succeed on a Wisdom saving throw (DC 8 plus your Dexterity modifier and Proficiency Bonus) or it must spend the next 1 minute trying to move as far away from the area of smoke as it can. During this time, it can't willingly move to a space nearer to the smoke or make Opportunity Attacks.