Agent of Erebos

Undead Fortitude. If damage reduces the zombie to 0 hit points, it must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant or from a critical hit. On a success, the zombie drops to 1 hit point instead.

Slam. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) bludgeoning damage.

Claw.  Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit 12 (2d6+5) slashing damage.

Misty Escape (recharges after a short or long rest).  In response to taking damage, the agent turns invisible and teleports up to 60 feet to an unoccupied space it can see. It remains invisible until the start of its next turn or until it attacks, makes a damage roll, or cast a spell.