Avatar of Shoth 2014

CR 21 aberration

Gargantuan aberration, lawful neutral

Armor Class: 18 (natural armor)
Hit Points: 341 (22d20+110)
Speed: 30 ft., climb 30 ft.

STR20 (+5)

DEX9 (-1)

CON20 (+5)

INT18 (+4)

WIS20 (+5)

CHA22 (+6)

Saving Throws: Constitution +12, Wisdom +12, Charisma +13
Skills: Insight +12, Perception +12, Persuasion +13
Damage Immunities: acid, cold, fire
Condition Immunities: charmed, frightened, prone
Senses: blindsight 60 ft., truesight 60 ft., passive Perception 22
Languages: all, telepathy 120 ft.
Challenge: 21 (33,000 XP) · Proficiency Bonus +7

Absorbent.

When the avatar damages a creature, it absorbs a portion of that creature's knowledge and power. As a bonus action, it can recreate any action available to a creature it damaged within the last minute. This includes spells and actions with limited uses or with a recharge. This recreated action is resolved using the avatar's statistics where applicable.

Amorphous.

The avatar, including its equipment, can move through a space as narrow as 1 inch wide without squeezing.

Innate Spellcasting (Psionics).

The avatar's innate spellcasting ability is Charisma (spell casting DC 21, +13 to hit with spell attacks). It may cast the following spells innately, requiring no components: At will: acid splash (4d6), light, spare the dying, true strike 3/day each: bless, blur, command, darkness, enthrall, shield 2/day each: counterspell, dispel magic 1/day each: black tentacles, confusion

Legendary Resistance (3/Day).

If the avatar fails a saving throw, it can choose to succeed instead.

Soothing Aura.

Any creature hostile to the avatar that starts its turn within 30 feet of the avatar must succeed on a DC 20 Wisdom saving throw or have disadvantage on all attack rolls until the end of its next turn. Creatures with Intelligence 3 or lower automatically fail the saving throw.

Actions

Acid Wave (Costs 2 Actions).

The avatar uses Acid Wave, if it is available.

Multiattack.

The avatar makes three oozing tentacle attacks.

Legendary Merge.

A shoth with less than half its maximum hp can merge with any other shoth creature within 10 feet, adding its remaining hp to that creature's. The hp gained this way can exceed the normal maximum of that creature. The avatar can accept any number of such mergers.

Consult the Zom (1/Day).

The avatar uses its action to consult its weighty zom for insight. The zom flashes brilliant crimson-and-white light. Each creature within 120 feet who can see the avatar must succeed on a DC 20 Constitution saving throw or be blinded until the end of its next turn. Each creature of the avatar's choice within 120 feet that speaks a language must succeed on a DC 20 Charisma saving throw or be stunned until the end of its next turn as the avatar telepathically utters a short expression that is particularly meaningful to that creature.

Legendary Actions

At Will Spell.

The avatar casts one at will spell.

Oozing Tentacle.

The avatar makes one oozing tentacle attack.

Acid Wave (Costs 2 Actions).

The avatar uses Acid Wave, if it is available.

Source: Creature Codex (Kobold Press) · License: OPEN GAME LICENSE Version 1.0a details