Assassin
You focus your training on the grim art of death. Those who adhere to this archetype are diverse: hired killers, spies, bounty hunters, and even specially anointed priests trained to exterminate the enemies of their deity. Stealth, poison, and disguise help you eliminate your foes with deadly efficiency.
Murder Kit
3rd-level Assassin feature
You gain proficiency with the disguise kit and the poisoner’s kit.
Additionally, over the course of a short or long rest, you can convert 50 gp of materials into a Basic Poison (see Chapter 5 in the Player's Handbook for more information) using your poisoner's kit. When you do so, the poison becomes enhanced for 1 hour, after which it reverts into a normal Basic Poison. While enhanced, the poison's save DC increases by an amount equal to half your rogue level, it deals poison damage equal to half your Sneak Attack dice instead of 1d4, and it remains potent for 1 hour instead of 1 minute.
Removal
3rd-level Assassin feature
You excel at removing targets from the field of play. While you're hidden from a creature, your weapon attacks against it score a critical hit on a roll of 19 or 20.
Additionally, when you deal Sneak Attack damage to a creature on your first turn in combat, you can attempt to silence it. The target must make a Constitution saving throw (DC = 8 + your proficiency bonus + your Dexterity modifier) or be stunned until the end of its next turn.
Infiltration Expertise
9th-level Assassin feature
You've perfected the creation of false identities and social infiltration. While you are disguised, such as with a disguise kit, and you aren't disguised as someone else who exists, other creatures believe you are the person you've disguised yourself as until given an obvious reason not to.
Additionally, while disguised in this way, you are considered hidden when making an attack you make against a creature that believes your identity. Once a creature sees you making an attack while disguised, you can't gain this benefit against that creature using your current identity.
Efficient Executioner
13th-level Assassin feature
Your murder kit expands. You gain proficiency with the forgery kit and another tool of your choice, which you can use to establish a false identity.
Additionally, when you deal Sneak Attack damage to a creature on your first turn in combat, you can forgo silencing it. When you do so, you can immediately make another weapon attack against the creature.
Death Strike
17th-level Assassin feature
Moving while hidden does not reveal your position. In addition, when you make a weapon attack against a creature while hidden from it, you can roll twice as many d20s for the attack roll. If two or more of the results on the dice would score a critical hit, you can roll additional dice for each additional result past the first. For example, if you roll a 4, 12, 19, and 20, you would roll the damage dice three times, rather than twice.

