Tandem Tactician

As a rogue, you are no stranger to fending for yourself in most situations. As a Tandem Tactician though, you have discovered how advantageous it can be to have a “partner in crime”, or at times a complicit “mark”, in virtually any encounter. Rogues who embrace this archetype know the value of the party they keep and that if everyone is working together, the more likely you will live to enjoy your riches. By their very nature and how they interact with their allies, Tandem Tacticians tend to grow into a plethora of roles that often center around leadership and camaraderie on and off the battlefield.

Synchronized Footwork

When you choose this archetype at 3 level, you learn how to fight in tandem with your “partner in crime” as you harry a mutual enemy. When you or an ally attacks a target that is within 5 feet of both of you, that creature has disadvantage on any opportunity attacks it makes against you or your ally until the end of your next turn.

Master of Tactics

Starting at 3rd level, you can use the Help action as a bonus action. Additionally, when you use the Help action to aid an ally in attacking a creature, the target of that attack can be within 30 feet of you, rather than within 5 feet of you, if the target can see or hear you.

Dynamic Duo

Starting at 9th level, you have learned to capitalize on the mere presence of your ally. They become a valuable distraction for you, whether they are aware of it or not. When you roll initiative, you can choose to swap your result with that of an ally within 30 feet of you that rolled a lower result than you. If you do so, at the start of your first turn you can use your Cunning Action feature to Dash without taking a bonus action to do so. 

You also gain an additional way to use your Sneak Attack; you don't need advantage on the attack roll to use your Sneak Attack against a creature if you are within 5 feet of an ally, you are within 5 feet of the creature, and you don't have disadvantage on the attack roll. All the other rules for Sneak Attack still apply to you.

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Uncanny Evasion

Starting at 13th level, your awareness in combat has become so razor sharp that you and your closest ally can rely on each other under the most dire circumstances.

While you are within 5 feet of an ally and use your Uncanny Dodge or Evasion feature, you may use your ally’s reaction to activate the feature even if you have already used your reaction. Conversely, your ally within 5 feet of you may use their reaction or your reaction to benefit from your Uncanny Dodge or Evasion feature. Both you and your ally must be conscious to benefit from this feature.

Deadly Duo

Beginning at 17th level, the synergy between you and your ally is at its peak. When you use the Help action to aid an ally in attacking a creature and your ally hits an enemy with their next attack roll, you can ignore all the rules for using your Sneak Attack damage against the same target until the end of your next turn. You need only to hit with an attack and when you do your Sneak Attack damage against the creature increases by 1d6.