As a Bonus Action, expend one Risk Die to gain Temporary Hit Points equal to the die roll plus 3.

As a Bonus Action, expend one Risk Die to gain Blindsight out to 30 feet until the end of the turn.

As a Bonus Action, expend one Risk Die to move up to 15 feet without provoking Opportunity Attacks and reload a held Ranged weapon.

When he takes the Dash, Disengage, or Dodge action, expend one Risk Die to make one ranged weapon attack as a Bonus Action and add the die to the damage on a hit.

Nathaniel can take the Dash, Disengage, or Hide action as a Bonus Action.

Nathaniel can use a Bonus Action to make a Dexterity check using thieves' tools to pick a lock or disable a trap, or to take the Utilize action to use an object requiring a Bonus Action. He can also use his Bonus Action to make a Dexterity check to pick a pocket or take an object from another creature.

Nathaniel gains a feat. He chose Observant, increasing his Wisdom by 1 and granting the Search action as a Bonus Action, with improved passive Perception and Investigation through his exceptional observation.

When a creature he can see hits him, expend one Risk Die as a Reaction and add the die roll to his AC against that attack.

When a creature Nathaniel can see hits him with an attack, he can take a Reaction to halve the attack's damage against him.

When a ranged weapon attack misses, expend one Risk Die to deal piercing damage equal to the die roll plus 5, minimum 1. Once per turn.

When he fails an Intelligence, Wisdom, or Charisma ability check or saving throw, expend one Risk Die and add it to the roll. Once per turn.

Nathaniel gains proficiency with light armor, simple weapons, and martial weapons that have the Finesse or Light property. He also gains proficiency with thieves' tools and one additional tool from his class training.

Nathaniel adds his Proficiency Bonus twice to checks made with Stealth and Investigation, his chosen Expertise skills.

Nathaniel deals an extra 9d6 damage once per turn when he hits a target with a qualifying attack while having Advantage, or when another enemy of the target is within 5 feet of it and Nathaniel does not have Disadvantage.

Nathaniel knows Thieves' Cant, including its secret signs and coded language.

Nathaniel gains a Fighting Style feat. He chose Archery, gaining a +2 bonus to attack rolls made with Ranged weapons. He also gains Quick Draw, granting Advantage on Initiative rolls and allowing him to draw or stow two non-Two-Handed weapons when he could normally draw or stow one.

Nathaniel can use the mastery properties of two chosen Simple or Martial Ranged weapons. His mastered weapons are the pistol and shortbow. He also gains firearm training appropriate to the Secret Agent Gunslinger class.

Nathaniel's ranged attack rolls score a Critical Hit on a roll of 19 or 20 on the d20.

Nathaniel has four d8 Risk Dice, regained after a Short or Long Rest. He can use them for Bite the Bullet, Blindfire, Dodge Roll, Grazing Shot, Maverick Spirit, Parting Shot, and Skin of Your Teeth.

Nathaniel gains Concealed Shot, a cantrip used with Intelligence, Wisdom, or Charisma, and proficiency with a Disguise Kit and Thieves' Tools. He also gains proficiency in Deception and Persuasion.

Nathaniel gains a Climb Speed equal to his Speed and ignores the extra movement normally required to climb. He can also make a running jump after moving only 5 feet.

Nathaniel gains a feat. He chose Sharpshooter, allowing him to ignore Disadvantage from long-range attacks and attacks against targets within 5 feet, and to ignore Half and Three-Quarters Cover when making Ranged attacks.

Nathaniel can use Cunning Strike when he deals Sneak Attack damage, sacrificing Sneak Attack dice to apply additional effects such as Trip, Withdraw, or Poison, subject to the maneuver's requirements.

Nathaniel has Advantage on Initiative rolls from Quick Draw and adds his Proficiency Bonus to Initiative from Alert. Immediately after rolling Initiative, he can swap his Initiative with that of a willing ally who is not Incapacitated.

Nathaniel gains a feat. He chose Skill Expert, increasing his Charisma by 1, gaining proficiency in Insight, and gaining Expertise in Perception.

Nathaniel can apply additional Cunning Strike options and can sacrifice more Sneak Attack dice to use them.

Nathaniel gains a feat. He chose Ability Score Improvement, increasing his Dexterity by 1 and Wisdom by 1.

Nathaniel can use any magic item regardless of class, species, or level prerequisites, can attune to up to four magic items, and can cast spells from magic items without using the normal class restrictions.

Nathaniel gains proficiency in Wisdom saving throws and Intelligence saving throws. He already has Wisdom saving throw proficiency from the Rogue class, so this feature reinforces his resistance to mental manipulation through his covert training.

Nathaniel gains a feat. He chose Ability Score Improvement, increasing his Dexterity by 1 and Charisma by 1.

At the start of the first round of each combat, Nathaniel can take two turns. He takes the first turn at his normal Initiative and the second turn at Initiative minus 10. He cannot use this feature when Surprised.

Nathaniel gains the Secret Agent Gunslinger maneuver suite, including Bite the Bullet, Blindfire, Dodge Roll, Grazing Shot, Maverick Spirit, Parting Shot, and Skin of Your Teeth. His maneuver save DC is 19.

Nathaniel has the Soldier background and the Savage Attacker Origin feat. Once per turn when he hits with a weapon attack, he can roll the weapon's damage dice twice and use either result, adding the relevant modifier as normal.