Attack specialist

You have achieved a penetrating precision in combat, granting you the following benefits:

• Increase your Strength or Dexterity by 1, to a maximum of 20.
• If a creature you are fighting has resistance or immunity to your attacks, Your attacks work as normal but do to there resistance or immunity your attacks now do double damage to that creature.
• you now crit hit on a 18, 19, or 20.