Shapechanger. Saint Mimiclaus 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.
Special Equipment. Saint Mimiclaus wears a gray robe of the archmagi which has been dyed red, wields a staff of the magi, and carries a bag of devouring which is actually a mimic. The mimic bag of devouring ignores other mimics (including Saint Mimiclaus) placed inside it.
Adhesive (Object Form Only). Saint Mimiclaus adheres to anything that touches it. A Huge or smaller creature adhered to Saint Mimiclaus is also grappled by it (escape DC 19). Ability checks made to escape this grapple have disadvantage.
False Appearance (Object Form Only). While Saint Mimiclaus remains motionless, it is indistinguishable from an ordinary object.
Grappler. Saint Mimiclaus has advantage on attack rolls against any creature grappled by it.
Innate Spellcasting. Saint Mimiclaus's spellcasting ability is Wisdom (spell save DC 19, +11 to hit with spell attacks). Saint Mimiclaus does not need to concentrate on concentration spell it casts innately, and can innately cast the following spells, requiring no material components:
At will: bless, druidcraft, thorn whip, detect magic
1/day each: conjure animals (summons eight elk), holy weapon, spirit guardians (radiant damage, appear as a spectral mimics with angel wings)
Legendary Resistance (3/Day). If Saint Mimiclaus fails a saving throw, it can choose to succeed instead.
Magic Resistance. Saint Mimiclaus has advantage on saving throws against spells and other magical effects.
Spellcasting. Saint Mimiclaus is an 18th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 19, +11 to hit with spell attacks). Saint Mimiclaus can cast hideous laughter and snilloc's snowball swarm at will and has the following spells prepared
Cantrips (at will): acid splash, frostbite, prestidigitation, toll the dead, shocking grasp
1st level (4 slots): charm person, grease, ice knife, sleep
2nd level (3 slots): blur, detect thoughts, misty step
3rd level (3 slots): hypnotic pattern, melf's minute meteors, sleet storm
4th level (3 slots): fire shield, ice storm, vitriolic sphere
5th level (3 slots): animate objects, cone of cold, steel wind strike
6th level (1 slot): freezing sphere
7th level (1 slot): crown of stars
8th level (1 slot): power word stun
9th level (1 slot): wish
Multiattack. Saint Mimiclaus makes three attacks with its staff of the magi. It can substitute one staff attack with either its pseudopod or its bite.
Staff of the Magi. Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 10 (1d6 + 7) bludgeoning damage or 11 (1d8 + 7) if used with both hands.
Pseudopod. Melee Weapon Attack: +11 to hit, reach 5ft., one target. Hit: 9 (1d8 + 5) bludgeoning damage. If the mimic is in object form, the target is subjected to its Adhesive trait.
Bite. Melee Weapon Attack: +11 to hit, reach 5 ft., one target. Hit: 9 (1d8 + 5) piercing damage plus 4 (1d8) acid damage.
Gift Bag. Saint Mimiclaus makes one pseudopod attack against one incapacitated creature it is grappling. If the attack hits, the target takes the pseudopod's damage and is placed inside Saint Mimiclaus's mimic bag of devouring.
Gift of the Mimic-gi (Recharge 5–6). Saint Mimiclaus reaches into its bag and summons 6 (1d12) mimics. Each summoned mimic assumes the form of a seasonal decoration and appears in an unoccupied space of Saint Mimiclaus's choosing within 20 feet of it.
Naughty. When a creature grappled by Saint Mimiclaus hits it with an attack, it can make a bite attack against that creature.
Nice. When a creature Saint Mimiclaus can see regains hit points from a healing spell or other effect, it can roll to recharge its Gift of the Mimic-gi.
Saint Mimiclaus can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. Saint Mimiclaus regains spent legendary actions at the start of its turn.
Attack. Saint Mimiclaus makes a bite attack against one creature it has grappled, or a pseudopod attack against one it hasn't.
Command Mimics. Up to three allied mimics within 30 feet of Saint Mimiclaus use their reaction to make one attack against one to three targets of Saint Mimiclaus's choice that it can see.
Staff of the Magi. Saint Mimiclaus makes one attack with its staff of the magi.
Cast a Spell (Costs 1-3 Actions). Saint Mimiclaus expends a spell slot to cast a 1st-, 2nd-, or 3rd-level spell that it has prepared. Doing so costs 1 legendary action per level of the spell.
Cast an At Will Spell. Saint Mimiclaus casts an at will spell.
Description
Saint Mimiclaus is a monstrous parody and twisted mimicry of a well-known mythological figure who brings gifts during the winter holidays to children who are well-behaved. The myth of Saint Mimiclaus is similar, but inverted. Rather that bring gifts to juveniles, the mimic saint brings juveniles to their gifts.
If a little mimic has been a good mimic, it is said that Saint Mimiclaus will come and spirit them away to bring them to a cozy new home full of prey: all a growing mimic could ever want. They awaken early one crisp winter morning to find themselves out of the cold for the winter with hearty, unsuspecting meals close at hand.
Shortly after a visit from real saint, the mimic saint enters a home and swaps the gifts left behind by the former with the young mimics it is rewarding. Both have ascended to sainthood for their generosity and works of good-will towards their fellow species.
Lair and Lair Actions
The Under Pole: Saint Mimiclaus’s Lair
Saint Mimiclaus's lair is known as the Under Pole, a secluded, frozen-over section of the Underdark that appears precisely like a holiday scene, with full-sized gingerbread cottages, evergreen trees, and snow; all mimics, of course, as the real versions of these things could not possibly be found in the Underdark. Saint Mimiclaus has a workshop in the Under Pole, where all Mimiclaus's Little Helpers (also mimics) spend their year making all of the gifts (more mimics) Mimiclaus will deliver that year.
Mimiclaus's Little Helpers
The Under Pole is densely populated with Saint Mimiclaus's little helpers: helper-elf mimics and reindeer mimics, as well as a large number of normal mimics.
Helper-Elf Mimic
Small monstrosity (humanoid, shapechanger), neutral
Armor Class 13 (Natural Armor)
Hit Points 27 (6d6 + 6)
Speed 25 ft.
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 15 (+2) | 18 (+4) | 13 (+1) | 10 (+0) | 14 (+2) | 9 (-1) |
Skills Stealth +5
Damage Resistances cold
Damage Immunities acid
Condition Immunities prone
Senses darkvision 60 ft., passive Perception 12
Languages Understands Common and Undercommon but can't speak
Challenge 4 (1,100 XP)
Shapechanger. The mimic can use its action to polymorph into a festive lawn gnome 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.
Adhesive (Object Form Only). The mimic adheres to anything that touches it. A creature adhered to the mimic is also grappled by it (escape DC 12). 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 though festive garden gnome. While moving, if the mimic refrains from using its pseudopod or bite attacks, it is indistinguishable from a redcap.
Grappler. The mimic has advantage on attack rolls against any creature grappled by it.
Innate Spellcasting. The mimic's innate spellcasting ability is Wisdom (spell save DC 13, +4 to hit with spell attacks). The mimic can innately cast the following spells, requiring no material components:
At will: acid splash, druidcraft, frostbite, mending, vicious mockery
3/day each: color spray, hideous laughter, misty step
2/day each: snilloc's snowball swarm
1/day each: animate objects (10 tiny objects)
Actions
Multiattack. The makes makes three attacks with its crafting hammer. It can substitute one crafting hammer with either its pseudopod or bite.
Crafting Hammer. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d4 + 2) bludgeoning damage.
Pseudopod. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) bludgeoning damage. If the mimic is in object form, the target is subjected to its Adhesive trait.
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage plus 3 (1d6) acid damage.
Reindeer Mimic
Large monstrosity (misc creature, shapechanger), unaligned
Armor Class 13 (Natural Armor)
Hit Points 102 (12d10 + 36)
Speed 50 ft., fly 50 ft. (hover)
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 19 (+4) | 12 (+1) | 17 (+3) | 2 (-4) | 14 (+2) | 9 (-1) |
Skills Stealth +5
Damage Resistances cold
Damage Immunities acid
Condition Immunities prone
Senses darkvision 60 ft., passive Perception 12
Languages Understands Common and Undercommon but can't speak
Challenge 4 (1,100 XP)
Shapechanger. The mimic can use its action to polymorph into a taxidermied elk 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.
Adhesive (Object Form Only). The mimic adheres to anything that touches it. A creature adhered to the mimic is also grappled by it (escape DC 14). Ability checks made to escape this grapple have disadvantage.
Charge (Elk Form Only). If the mimic moves at least 20 feet straight toward a target and then hits it with a ram attack on the same turn, the target takes an extra 7 (2d6) damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or either be knocked prone or subjected to the mimic's Adhesive trait (mimic's choice). If the target is knocked prone, the mimic can make one hooves attack against it as a bonus action.
False Appearance (Object Form Only). While the mimic refrains from using its pseudopod or bite attacks, it is indistinguishable from an ordinary elk.
Grappler. The mimic has advantage on attack rolls against any creature grappled by it.
Actions
Pseudopod. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) bludgeoning damage. If the mimic is in object form, the target is subjected to its Adhesive trait.
Bite. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 13 (2d8 + 4) piercing damage plus 9 (2d8) acid damage.
Ram. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 11 (2d6 + 4) piercing damage.
Hooves. Melee Weapon Attack: +6 to hit, reach 5 ft., one prone creature. Hit: 9 (2d4 + 4) bludgeoning damage.
Lair Actions
On initiative count 20 (losing initiative ties), Saint Mimiclaus takes a lair action to cause one of the following effects:
- Saint Mimiclaus calls out to the hibernating Gargantuan mimics imitating buildings in the lair, rousing them against invaders. Each creature within 20 feet of any structure in the lair must make a DC 19 Dexterity saving throw. On a failure, a creature takes 14 (4d6) bludgeoning damage, is pulled up to 15 feet towards the nearest structure, and is adhered to its wall by a mimic's Adhesive trait (escape DC 15) until the next initiative count 20.
- Each mimic that Saint Mimiclaus can see can use its reaction to move up to its speed.
- Until the next initiative count 20, all mimics within the lair are enraged, causing them to have advantage on melee weapon attack rolls and causing attack rolls to have advantage against them.
Regional Effects
The region containing Saint Mimiclaus's lair is influenced by its presence, which creates one or more of the following effects:
- The area within 1 mile of the lair is densely populated with evergreen trees, giant candy canes, snow, and other winter-holiday themed objects and structures that are entirely atypical of the Underdark.
- Nearly every object or structure within 1 mile of the lair is actually a mimic.
- All mimics within 1 mile of the lair report the approach of any non-mimic creature they see to the Under Pole. The information arrives in 1d6 minutes.
If Saint Mimiclaus dies, these effects fade in 1d4 weeks.
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