Slowing Strike

You can disrupt the flow of ki in an opponent’s body, slowing their actions and response time when the time is right.

• Increase your Wisdom or Dexterity scores by 1, to a maximum of 20.
• You have advantage on saving throws against effects that would reduce your speed.
• Whenever you hit a melee weapon attack, you may spend 1 ki point to attempt a slowing strike. The target must succeed on a Wisdom saving throw or suffer the effects of the slow spell until the end of its next turn (a creature’s speed is halved, it takes a −2 penalty to AC and Dexterity saving throws, and it can't use reactions. On its turn, it can use either an action or a bonus action, not both. Regardless of the creature's abilities or magic items, it can't make more than one melee or ranged attack during its turn. If the creature attempts to cast a spell with a casting time of 1 action, roll a d20. On an 11 or higher, the spell doesn't take effect until the creature's next turn, and the creature must use its action on that turn to complete the spell. If it can't, the spell is wasted).