Level 3: Improved Critical

3rd-level Precision Master feature

You can score a critical hit on a roll of 19 or 20 with your weapon attacks.
Additionally, as long as you have not moved willingly since your last turn, you have an extra reaction.

Level 3: Experienced Mind

3rd-level Precision Master feature

Thanks to your Keen mind, you have Advantage on Charisma and Intelligence checks.

If you spend at least 1 hour meditating in a safe environment, you can gain proficiency in one Charisma or Intelligence skill of your choice until the end of your next long rest.

Level 7: Perfect Timing

7th-level Precision Master feature

Your focus allows you to turn missed opportunities into devastating strikes.

• Focused Strike: When you miss a creature with a weapon attack, you can use your reaction to reroll the attack. If the reroll is a critical hit, the attack deals an extra damage die.
  You can use this feature a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a short or long rest.

Level 10: Critical Insight

10th-level Precision Master feature

Your mastery of precision enables you to predict your enemies' movements and exploit their weaknesses.

• As a bonus action, you can gesture to a creature that can see or hear you within 60 feet, marking them. You can have multiple marked creatures simultaneously, but only one mark per creature.
  For 1 minute, you gain the following benefits against the marked creature:
  • Your critical hit range against that creature expands by 1 (e.g., 18–20 if you normally score criticals on 19 or 20).
  • When you score a critical hit against a marked creature using Focused Strike, you can choose to deal maximum damage instead of rolling.
  • You can mark a creature a number of times equal to your Intelligence modifier (minimum of 1), regaining expended uses after a long rest.

Level 15: Cascading Criticals

15th-level Precision Master feature

Your critical strikes send ripples through the battlefield, chaining into devastating follow-up attacks.

• The first time you score a critical hit when taking the attack action on your turn, you can immediately make another weapon attack as part of the same action. If this attack is also a critical hit, you can repeat this process up to your proficiency bonus, making another attack each time you critically hit.
• Once the chain ends (when an attack doesn’t critically hit), you gain a deeper understanding of your target’s weaknesses if it was already marked.
  • Until the end of your next turn, your critical hit range against a marked creature expands by 1 (e.g., 17–20 if you normally score criticals on 18 or 19).
    You can use this feature once per turn.

Level 18: Master of Precision

18th-level Precision Master feature

Your refined combat techniques allow you to use your abilities in ingenious ways. You can now use your Action Surge, Second Wind, and Focused Strike features as reactions in the following enhanced ways:

• Thoughtful Action: You may expend your Action Surge on the first round of combat to roll initiative with advantage. All attacks made that round have their critical hit range expanded by 1.
• Unyielding Focus: You may use Second Wind as a reaction to avoid dropping to 0 hit points. The next time you would be reduced to 0 hit points, you are reduced to 1 hit point instead.
• Flawless Reflex: Once per turn, when an enemy misses you with an attack, you can expend a use of Focused Strike as a reaction to make an attack against that creature. This attack resolves after the creature’s attacks if they have multiple, but before they can move away.