Thief (5e Creature)
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Medium humanoid (any race), any alignment
Special Equipment. The thief carries a set of thieves' tools, and can add double its proficiency bonus for checks made with them.
Cunning Action. On each of its turns, the thief can use a bonus action to take the Dash, Disengage, or Hide action.
Sneak Attack (1/Turn). The thief deals an extra 3 (1d6) damage when it hits a target with a weapon attack and has advantage on the attack roll, or when the target is within 5 ft. of an ally of the thief that isn't incapacitated and the thief doesn't have disadvantage on the attack roll.
Dagger. Melee or Ranged Weapon Attack: +4 to hit, reach 5 ft. or range 20/60 ft., one target. Hit: 4 (1d4 + 2) piercing damage.