Calculated Strikes

You’ve developed the skills to calculate your hits with weapons, using your tactical mind to grant you an edge in combat. You gain the following benefits:

• Whenever you attack with a Martial weapon with which you have proficiency, you can use your Intelligence modifier for the attack and damage rolls instead of using Strength or Dexterity.
• When you attack with a weapon whose Mastery property you can use, you can replace that property with the Vex property for that attack.
• If you move no more than half your speed on the same turn you hit a creature with a weapon attack, you can use a bonus action to cause the attack to deal 1d6 extra damage of the weapon's type. This damage increases to 1d8 at 5th level, 1d10 at 11th level, and 1d12 at 17th.