Chest Guardian Bandit

Brave and Defiant: The Chest Guardian Bandit has advantage on saving throws to avoid the charmed and frightened conditions

Pack Tactics: The Chest Guardian Bandit has advantage on attack rolls if you have an ally within 5ft of the target.

Multiattack: The Chest Guardian Bandit makes two attacks on its attack action.

Chest Bash: Melee Weapon Attack +8 to hit, 5ft reach, one target, for 2d8+5 bludgeoning damage.

Spit Coin: Ranged Weapon Attack: +8 to hit, 60ft range, one target, for 1d6+5 bludgeoning damage. 

Chest Trap: A creature within 5ft of the Chest Guardian Bandit must succeed in a DC 16 Dexterity saving throw taking 1d8 bludgeoning damage and being restrained within the Chest on a failure.
The Chest Guardian Bandit can have a single medium or smaller creature restrained within its chest at any given time.
A creature restrained in this way is blinded and deafened, and will begin to sufocate in 3 turns.
A creature can attempt to break free by succeeding in a DC 16 Strenght saving throw at the start of its turn, or by succeeding in a DC 22 Sleigth of Hand skill check to unlock the chest and slide out.

Chest Shake: The Chest Guardian Bandit shakes the chest violently, the creature restrained within this chest takes 2d8 bludgeoning damage.