Greater Star Spawn Emissary

{
  "ac": [
    {
      "ac": 15,
      "from": [
        "natural armor"
      ]
    }
  ],
  "cr": "21",
  "hp": {
    "average": 290,
    "formula": "20d12 + 160"
  },
  "cha": 25,
  "con": 26,
  "dex": 13,
  "int": 27,
  "str": 24,
  "wis": 22,
  "name": "Greater Star Spawn Emissary",
  "page": 245,
  "save": {
    "cha": "+14",
    "con": "+15",
    "int": "+15",
    "wis": "+13"
  },
  "size": [
    "H"
  ],
  "type": "aberration",
  "skill": {
    "arcana": "+22",
    "perception": "+13"
  },
  "speed": {
    "fly": {
      "number": 40,
      "condition": "(hover)"
    },
    "walk": 40,
    "canHover": true
  },
  "trait": [
    {
      "name": "Legendary Resistance (4/Day)",
      "entries": [
        "If the emissary fails a saving throw, it can choose to succeed instead."
      ]
    },
    {
      "name": "Unusual Nature",
      "entries": [
        "The emissary doesn't require air, food, drink, or sleep."
      ]
    }
  ],
  "__prop": "monster",
  "action": [
    {
      "name": "Multiattack",
      "entries": [
        "The emissary makes three attacks."
      ]
    },
    {
      "name": "Lashing Maw",
      "entries": [
        "{@atk mw} {@hit 14} to hit, reach 15 ft., one target. {@h}20 ({@damage 2d10 + 7}) piercing damage plus 13 ({@damage 3d8}) acid damage."
      ]
    },
    {
      "name": "Psychic Orb",
      "entries": [
        "{@atk rs} {@hit 15} to hit, range 120 ft., one creature. {@h}27 ({@damage 3d12 + 8}) psychic damage."
      ]
    },
    {
      "name": "Unearthly Bile {@recharge 5}",
      "entries": [
        "The emissary expels bile that splashes all creatures in a 30-foot-radius sphere centered on a point within 120 feet of the emissary. Each creature in that area must make a {@dc 23} Dexterity saving throw, taking 55 ({@damage 10d10}) acid damage on a failed save, or half as much damage on a successful one. For each creature that fails the saving throw, a {@creature gibbering mouther} (see its entry in the Monster Manual) appears in an unoccupied space on a surface that can support it within 30 feet of that creature. The gibbering mouthers act right after the emissary on the same initiative count, gaining a +7 bonus to their attack and damage rolls, and fighting until they are destroyed. They disappear when the emissary dies."
      ]
    }
  ],
  "resist": [
    "acid",
    "force",
    "necrotic",
    "psychic"
  ],
  "senses": [
    "truesight 120 ft."
  ],
  "source": "VRGR",
  "passive": 23,
  "hasFluff": true,
  "hasToken": true,
  "miscTags": [
    "AOE",
    "MW",
    "RCH"
  ],
  "languages": [
    "all",
    "telepathy 1,000 ft."
  ],
  "legendary": [
    {
      "name": "Attack",
      "entries": [
        "The emissary teleports up to 30 feet to an unoccupied space it can see and makes one attack."
      ]
    },
    {
      "name": "Warp Space (Costs 2 Actions)",
      "entries": [
        "The emissary causes the ground in a 20-foot square that it can see within 90 feet of it to turn into teeth and maws until the start of its next turn. The area becomes {@quickref difficult terrain||3} for the duration. Any creature takes 10 ({@damage 3d6}) piercing damage for each 5 feet it moves on this terrain."
      ]
    },
    {
      "name": "Mind Cloud (Costs 3 Actions)",
      "entries": [
        "The emissary unleashes a psychic wave. Each creature within 30 feet of the emissary must succeed on a {@dc 23} Wisdom saving throw or take 32 ({@damage 5d12}) psychic damage. In addition, every spell ends on creatures and objects of the emissary's choice in that area."
      ]
    }
  ],
  "senseTags": [
    "U"
  ],
  "traitTags": [
    "Legendary Resistances",
    "Unusual Nature"
  ],
  "actionTags": [
    "Multiattack"
  ],
  "damageTags": [
    "A",
    "P",
    "Y"
  ],
  "reprintedAs": [
    "Greater Star Spawn Emissary|RHW"
  ],
  "languageTags": [
    "TP",
    "XX"
  ],
  "hasFluffImages": true,
  "conditionImmune": [
    "charmed",
    "frightened"
  ],
  "savingThrowForced": [
    "dexterity",
    "wisdom"
  ]
}