You have learned techniques or unleashed your innate ability to exert greater control over the battlefield. This version replaces the feat of the same name from the PHB. You gain the following benefits:
You may use either your bonus action or your reaction for an opportunity attack. This means that you may be able to perform a second opportunity attack on the same turn if you have your reaction or bonus action left and the opportunity attack is triggered.
Creatures within melee range provoke an opportunity attack even if they take the Disengage action before leaving your reach.
When you hit a creature with an opportunity attack, the creature's speed becomes 0 for the rest of the turn.
When a creature within melee range of you makes an attack against a target other than you, you may make an opportunity attack against the attacking creature.
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