As a Bonus Action, Dash, Disengage, or Hide.

Use a Bonus Action to make a Dexterity check to pick a lock, disarm a trap, or take the Utilize action involving an object, including certain Sleight of Hand tasks.

When a creature hits you with an attack, use your Reaction to halve the attack's damage.

Make one weapon attack with a weapon that has the Finesse or Ranged property, then add 5d6 Sneak Attack damage once per turn when the requirements are met.

After dealing Sneak Attack damage, sacrifice Sneak Attack dice to apply a Cunning Strike effect such as Withdraw, Trip, or Poison.

Climbing costs no additional movement, and you can make running jumps using Dexterity rather than Strength.

You gain proficiency with martial weapons that have the Finesse or Light property, plus three simple weapons of your choice. You can also use weapon mastery with two weapons you are proficient with. Chosen mastery weapons are dagger and shortbow.

You gain proficiency in four skills of your choice. Chosen skills are Acrobatics, Deception, Investigation, and Perception.

You gain Expertise in two proficient skills or with Thieves' Tools. Chosen Expertise are Stealth and Thieves' Tools.

You know Thieves' Cant and one other language, chosen here as Common and Elvish.

Choose a Rogue subclass. Tavik is a Thief, gaining the Fast Hands and Second-Story Work features.

You gain a feat. Tavik chose Skulker, allowing him to remain hidden when lightly obscured, miss without revealing his position, and make attacks from hiding with improved precision.

When you use Cunning Strike, you can apply two different Cunning Strike effects by sacrificing additional Sneak Attack dice, provided all requirements are met.

You gain Expertise in two additional proficient skills or tools. Chosen additional Expertise are Sleight of Hand and Perception.

When you make a Dexterity check using a proficient skill or tool, any roll of 9 or lower on the d20 counts as a 10.

When you are subjected to an effect that allows a Dexterity saving throw for half damage, you instead take no damage on a success and half damage on a failure.

You gain a feat. Tavik chose Tough, increasing his maximum hit points by 20 at this level and adding 2 maximum hit points whenever his level increases.

Your Thief subclass grants Supreme Sneak. When you use Cunning Action to Hide, you gain a Climb Speed equal to your Speed for the turn and can move up to half your Speed without ending the Invisible condition created by certain hiding effects, as applicable.

You have a reliable, though morally flexible, contact who acts as your liaison with a network of criminals. You know how to communicate with this contact through coded messages and can obtain information about local criminal activity, though favors and information may carry a cost.