Rogue Tactics
Assassination
You are at your deadliest when you get the drop on your enemies. Assassination tactics give you the following abilities:
Assassin’s Gambit. Once on your turn, you can use a bonus action to add 3d6 damage your pool of sneak attack dice.
Deathstrike. When you hit a creature with your sneak attack, you can reduce the sneak attack dice pool by 9d6 to make the attack a critical hit. When you use this ability you can reduce the the sneak attack pool cost by 3d6 for each of the following:
if the target must is bloodied,
if the target is incapacitated
if you are unseen by the target.
First Blood. On your first round of combat, you have advantage on attack rolls against any creature that hasn’t taken a turn in that combat yet. Your sneak attack is also an automatic critical hit, if the target is surprised.