Sentinel (half-feat)

You have mastered techniques to take advantage of every drop in any enemy's guard, gaining the following benefits:

• Increase your Strength or Dexterity score by 1, to a maximum of 20.
• When you hit a creature with an opportunity attack, the creature's speed becomes 0 for the rest of the turn.
• Creatures provoke opportunity attacks from you even if they take the Disengage action before leaving your reach.