The rain of asteroids launched by the Mimic Moon smashes into the planet in 1d4 waves per day. Some impacts cluster while others are widely dispersed. The exact number of asteroids in each wave and how they are grouped depends largely on the needs of the campaign.

The impact of each rocklike projectile causes a 50-foot-deep, 100-foot-radius crater. Each creature in that radius must make a DC 20 Dexterity saving throw, taking 37 (7d10) force damage and 44 (8d10) bludgeoning damage from flying rubble on a failed saving throw or half as much on a successful one. All structures in the impact radius are destroyed. 

The exact number of mimics within each asteroid varies as some do not survive the landing, but 1d12 is a good starting place. At least one in twenty asteroids holds a doppelganger general who can command all mimics within 500 feet. All mimics created by Odlayo are loyal to the Mimic Moon. 

Odlayo creates all known mimic types as well as a few new variants as described below.

Assassin Mimic

A hunting mimic, this variant specializes in slaughtering high-value foes.

ASSASSIN MIMIC

Medium monstrosity (shapechanger), neutral
Armor Class 14 (natural armor)
Hit Points 71 (11d8 + 22)
Speed 30 ft., climb 20 ft.

STR	DEX	CON	INT	WIS	CHA
17 (+3)	18 (+4)	15 (+2)	8 (−1)	13 (+1)	10 (+0)

Skills Stealth +8
Damage Immunities acid, poison
Condition Immunities poisoned, prone
Senses darkvision 60 ft., passive Perception 11
Languages —
Challenge 4 (1,100 XP)

Adaptive Skin. While in dim light or darkness, the mimic can take the Hide action as a bonus action.

Arms Mimic. The mimic can transform its pseudopods into any melee weapon as a bonus action. The weapons it creates are as hard as the finest steel and are coated in a potent poison. The mimic has proficiency on any weapon it mimics. 

False Appearance (Object Form Only). While the mimic remains motionless on a vertical or horizontal surface, it is indistinguishable from the surface behind it.

Shapechanger. The mimic can use its action to flatten itself on a vertical or horizontal surface or back into its true, amorphous form. Its statistics are the same in each form. Any equipment it is wearing or carrying isn’t transformed. It reverts to its true form if it dies.

Sneak Attack. Once per turn, the assassin mimic deals an extra 7 (2d6) damage when it hits a target with a weapon attack and has advantage on the attack roll, or when the target is within 5 feet of an ally of the mimic that isn’t incapacitated and the assassin doesn’t have disadvantage on the attack roll.

Spider Climb. The mimic can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

ACTIONS

Multiattack. The mimic makes two Weapon or Pseudopod attacks.

Pseudopod. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage.

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) piercing damage plus 4 (1d8) acid damage.

Shortsword. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d6 + 4) piercing damage, and the target must make a DC 13 Constitution saving throw, taking 7(2d6) poison damage on a failed save or half as much on a successful one.

Beast Mimic

By copying animal forms, this mimic variant exists to spread horror and death wherever it goes. 

BEAST MIMIC

Medium monstrosity (shapechanger), neutral
Armor Class 14 (natural armor)
Hit Points 65 (10d8 + 20)
Speed 40 ft.

STR	DEX	CON	INT	WIS	CHA
17 (+3)	16 (+3)	15 (+2)	5 (−3)	13 (+1)	8 (−1)

Skills Stealth +5
Damage Immunities acid
Condition Immunities prone
Senses darkvision 60 ft., passive Perception 11
Languages —
Challenge 3 (700 XP)

Adhesive (Amorphous Form Only). The mimic adheres to anything that touches it. A Huge or smaller creature adhered to the mimic is also grappled by it (escape DC 13). Ability checks made to escape this grapple have disadvantage.

Animal Forms. The mimic can use its action to polymorph into a CR 2 or lower Medium sized or smaller beast it has seen or back into its true, amorphous form. Its game statistics are replaced by the statistics of the beast, but it retains its hit points, alignment, personality, and its Intelligence, Wisdom, and Charisma scores. Any equipment it is wearing or carrying isn’t transformed. It reverts to its true form if it dies.

False Appearance (Beast Form Only). While the mimic is in beast form, it is indistinguishable from an ordinary beast.

Grappler. The mimic has advantage on attack rolls against any creature grappled by it.

ACTIONS

Multiattack. The mimic makes a Pseudopod attack and a Bite attack in its amorphous form. While in beast form, the number of attacks depends on the form chosen.

Pseudopod (Amorphous Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) bludgeoning damage. If the mimic is in object form, the target is subjected to its Adhesive trait.

Mimic Bite (Amorphous Form Only). Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) piercing damage plus 4 (1d8) acid damage.

Spell Mimic

The mimic variant seeks to level the field in terms of ranged attacks and magical firepower. 

SPELL MIMIC

Medium monstrosity (shapechanger), neutral
Armor Class 12 (natural armor)
Hit Points 65 (10d8 + 20)
Speed 15 ft.

STR	DEX	CON	INT	WIS	CHA
17 (+3)	12 (+1)	15 (+2)	5 (−3)	13 (+1)	15 (+2)

Skills Stealth +5
Damage Immunities acid
Condition Immunities prone
Senses darkvision 60 ft., passive Perception 11
Languages —
Challenge 3 (700 XP)

Adhesive (Object Form Only). The mimic adheres to anything that touches it. A Huge or smaller creature adhered to the mimic is also grappled by it (escape DC 13). Ability checks made to escape this grapple have disadvantage.

False Appearance (Object Form Only). While the mimic remains motionless, it is indistinguishable from an ordinary object.

Shapechanger. The mimic can use its action to polymorph into an object or back into its true, amorphous form. Its statistics are the same in each form. Any equipment it is wearing or carrying isn’t transformed. It reverts to its true form if it dies.

ACTIONS

Multiattack. The mimic makes a Bite attack and two Eldritch Blast attacks. 

Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 7 (1d8 + 3) piercing damage plus 4 (1d8) acid damage.

Eldritch Blast. Ranged Spell Attack: + 3 to hit, range 120 feet, one target. Hit: 5 (1d10) force damage.

Spellcasting. When the mimic has copied a spell via its Spell Transmogrification reaction, it can use an action to cast that spell. The spell uses all of the same numerical values against its new target as the original spell.

REACTIONS

Spell Transmogrification. If the mimic makes a successful saving throw against a spell or if a spell attack misses it, the mimic can use its reaction to copy the spell. A copied spell is usable by the mimic until it takes a short rest or copies a new spell.

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