Chest Mimic

Treasure Lure

The mimic gains advantage on attack rolls against creatures that opened it on the same turn.

Jaw Slam

Any creature grappled by the mimic must succeed on a DC 18 Strength saving throw or be restrained by its jaws.
A restrained creature can attempt to escape at the end of each of its turns with a Strength check against DC 18.

Lock Snap

The mimic can automatically break wooden doors or chests within 5 ft. of it. This doesn’t require an attack roll and ignores hardness or AC.

False Appearance

While closed and motionless, the mimic looks like a normal treasure chest. Detecting the mimic requires a DC 20 Intelligence (Investigation) check.

Multiattack

The mimic makes two Bite attacks and one Lid Slam.

Bite

Melee Weapon Attack: +14 to hit, reach 5 ft., one target.
Hit: 26 (4d10 + 8) piercing damage.
If the target is Medium or smaller and not restrained, it must succeed on a DC 18 Strength saving throw or be grappled.

Lid Slam

10-foot cone. Each creature in the area must make a DC 18 Dexterity saving throw:

• Failure: 21 (3d12) bludgeoning damage and knocked prone

• Success: Half damage, not prone

Grapple (Recharge 5–6)

The mimic bites and restrains one Medium creature in its jaws.
The target must succeed on a DC 18 Strength saving throw at the start of its turn to escape.

The Chest Mimic can take 3 legendary actions, choosing from the options below. Only one option may be used at a time and only at the end of another creature’s turn. Legendary actions are regained at the start of the mimic’s turn.

Bite (Costs 1 Action)

The mimic makes one Bite attack.

Slam (Costs 1 Action)

The mimic uses Lid Slam in a 10-foot cone.

Jaw Snap (Costs 2 Actions)

The mimic targets a creature currently restrained in its jaws.

• The target takes 11 (2d10) piercing damage.

• The creature may attempt a Strength check on its turn to escape as normal.