Sneak Attack. Once per turn, the assassin deals an extra 2d6 damage when it hits a target with a weapon attack and has advantage on the attack roll, or when the target is within 5 feet of an ally of the assassin that isn’t incapacitated and the assassin doesn’t have disadvantage on the attack roll.   Assassinate. Has advantage on attack rolls against any creature that hasn’t taken a turn in the combat yet. In addition, any hit scored against a creature that is surprised is a critical hit.   Uncanny Dodge. When an attacker the assassin can see hits them with an attack, the assassin can use their reaction to halve the attack’s damage against them.