Instant Wall (Flask)

When you take the Attack action, you can replace one of your attacks with throwing a flask of Instant Wall. Target one point you can see within 20 feet of yourself. A 10-foot-square, 1-foot-thick panel of stone-like matter erupts on the point with the wall facing you. The wall lasts until the end of your next turn, then it crumbles into dust. The panel is an object with AC 12 and 10 Hit Points, and is Vulnerable to Bludgeoning and Thunder damage. If the panel cuts through a creature's space when it erupts, that creature must make a Strength or Dexterity saving throw (its choice, DC 8 plus your Dexterity modifier and Proficiency Bonus) or take 1d8 Bludgeoning damage and be forced to the side of the wall of your choice.