Air Sentinel

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

• When you hit a creature with an opportunity attack, the creature's speed becomes 0 for the rest of the turn.
• If the creature is in the air it falls to the ground
• When a creature within 15 feet of you makes an attack against a target other than you , you can use your reaction to make a opportunity ranged weapon attack against the attacking creature.