Ankle Slasher

You learn how to expertly cripple opponents larger than you. You gain the following benefits:

• Increase your Strength or Dexterity score by 1, to a maximum of 20.
• Whenever you roll a critical hit against an opponent larger than you, the opponents movement speed becomes 0 until the end of your next turn, and the opponent loses reactions.
• For every critical hit against an opponent, that opponent loses 5 ft of movement speed for the next minute. This can stack.