Appearance Varies By Organic Units Consumed. Asymmetrical Asseblage Most Likely Statistical Outcome. Comeliness Rating Irrelevant. Mission To Consume and Find Perfection On Going.

Ersatz the Mimic

Medium construct, neutral evil

Armor Class 17 (natural armor)

Hit Points 237 (25d8 + 125)

Speed 40ft

Fly 10ft

Str 16 Dex 15 Con 20 Int 18 Wis 18 Cha 14

Saving Throws Str +9, Con +11

Damage Immunities poison; bludgeoning, piercing, and slashing from nonmagical attacks that aren't adamantine

Condition Immunities exhaustion, paralyzed, petrified, poisoned

Sensesdarkvision 120 ft., passive Perception 14

Languages all

Challenge 18 (20,000 XP)

Antimagic Susceptibility.

Ersatz is incapacitated while in the area of an antimagic field. If targeted by dispel magic, the Eresatz must succeed on a Constitution saving throw against the caster's spell save DC or fall unconscious for 1 minute.

Brute (Bugbear Facet).

A melee weapon deals one extra die of its damage when the Ersatz hits with it (included in the attack).

Grasping Tendrils (Roper Facet).

Ersatz can have up to six tendrils at a time. Each tendril can be attacked (AC 20; 10 hit points; immunity to poison and psychic damage). Destroying a tendril deals no damage to Ersatz, which can extrude a replacement tendril on its next turn. A tendril can also be broken if a creature takes an action and succeeds on a DC 15 Strength check against it.

Immutable Form.

Ersatz is immune to any spell or effect that would alter its form.

Labyrinthine Recall (Minotaur Facet).

Ersatz can perfectly recall any path it has traveled.

Magic Resistance.

Ersatz has advantage on saving throws against spells and other magical effects.

Magic Weapons.

Ersatz's weapon attacks are magical.

Pack Tactics (Wolf Facet).

Ersatz has advantage on an attack roll against a creature if at least one of the Eresatz's allies is within 5 ft. of the creature and the ally isn't incapacitated.

Rampage (Gnoll Facet).

When Ersatz reduces a creature to 0 hit points with a melee attack on its turn, Ersatz can take a bonus action to move up to half its speed and make a melee attack.

Actions

Multiattack.

Ersatz makes three weapon attacks.

Consume Likeness.

Ersatz utterly consumes a dead non-construct creature within 5ft. For the next week, Ersatz gains one Facet (Ability, Action, Bonus Action, or Reaction) the creature had. Ersatz retains this Facet for 1 week. This Facet functions just as it would from the creature it came from, save any DC is modified to fit Eresatz Attribute modifiers and Proficiency Bonus of +6. A base set of Facets are already included in this stat block for Ersatz to be encountered with.

Bite (Mimic Facet).

Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 12 (2d8 + 3) piercing damage plus 4 (1d8) acid damage.

Pincer (Chuul Facet).

Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 14 (3d6 + 4) bludgeoning damage. The target is grappled (escape DC 14) if it is a Large or smaller creature and the chuul doesn't have two other creatures grappled.

Tendril (Roper Facet).

Melee Weapon Attack: +9 to hit, reach 50 ft., one creature. Hit: The target is grappled (escape DC 17). Until the grapple ends, the target is restrained and has disadvantage on Strength checks and Strength saving throws, and Ersatz can't use the same tendril on another target.

Fire Breath (Recharge 5-6) (Chimera Facet).

Eresatz exhales fire in a 15foot cone. Each creature in that area must make a DC 19 Dexterity saving throw, taking 31 (7d8) fire damage on a failed save, or half as much damage on a successful one.

Bonus Actions

Modify.

Ersatz the Mimic uses its bonus action to change one or both of the saving throws it is Proficient in until the start of its next turn at which point it reverts to Strength and Constitution respectively.

Reactions

Adaptive Nature.

Whenever Ersatz the Mimic succeeds on a save against a Condition, it may use its Reaction to become immune to that Condition for the next 24 hours. Choose 1 Condition Ersatz is already immune to at the start of a first encounter.