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Cackle Fever

DiseaseXDMGp. 612024SRD

Cheaply made potions and elixirs are sometimes tainted by Cackle Fever, which affects Humanoids only (gnomes are strangely immune). A creature suffers the following effects 1d4 days after infection:

  • Fever. The creature gains 1 Exhaustion level, which lasts until the contagion ends on the creature.
  • Uncontrollable Laughter. While the creature has the Exhaustion condition, the creature makes a DC 13 Constitution saving throw each time it takes damage other than Psychic damage. On a failed save, the creature takes 5 (1d10) Psychic damage and has the Incapacitated condition as it laughs uncontrollably. At the end of each of its turns, the creature repeats the save, ending the effect on itself on a success. After 1 minute, it succeeds automatically.

Fighting the Contagion

At the end of each Long Rest, an infected creature makes a DC 13 Constitution saving throw. After the creature succeeds on three of these saves, the contagion ends on it, and the creature is immune to Cackle Fever for 1 year.

Spreading the Contagion

Any Humanoid (other than a gnome) that starts its turn within a 10-foot Emanation originating from a creature infected with Cackle Fever must succeed on a DC 10 Constitution saving throw or also become infected with the contagion. On a successful save, the Humanoid can't catch the contagion from that particular infected creature for the next 24 hours.

Raw data
{
  "name": "Cackle Fever",
  "page": 61,
  "type": "Magical Contagion",
  "srd52": true,
  "__prop": "disease",
  "source": "XDMG",
  "entries": [
    "Cheaply made potions and elixirs are sometimes tainted by Cackle Fever, which affects Humanoids only (gnomes are strangely immune). A creature suffers the following effects {@dice 1d4} days after infection:",
    {
      "type": "list",
      "items": [
        {
          "name": "Fever",
          "type": "item",
          "entry": "The creature gains 1 {@condition Exhaustion|XPHB} level, which lasts until the contagion ends on the creature."
        },
        {
          "name": "Uncontrollable Laughter",
          "type": "item",
          "entry": "While the creature has the {@condition Exhaustion|XPHB} condition, the creature makes a {@dc 13} Constitution saving throw each time it takes damage other than Psychic damage. On a failed save, the creature takes 5 ({@damage 1d10}) Psychic damage and has the {@condition Incapacitated|XPHB} condition as it laughs uncontrollably. At the end of each of its turns, the creature repeats the save, ending the effect on itself on a success. After 1 minute, it succeeds automatically."
        }
      ],
      "style": "list-hang-notitle"
    },
    {
      "type": "entries",
      "entries": [
        {
          "name": "Fighting the Contagion",
          "type": "entries",
          "entries": [
            "At the end of each Long Rest, an infected creature makes a {@dc 13} Constitution saving throw. After the creature succeeds on three of these saves, the contagion ends on it, and the creature is immune to Cackle Fever for 1 year."
          ]
        },
        {
          "name": "Spreading the Contagion",
          "type": "entries",
          "entries": [
            "Any Humanoid (other than a gnome) that starts its turn within a 10-foot {@variantrule Emanation [Area of Effect]|XPHB|Emanation} originating from a creature infected with Cackle Fever must succeed on a {@dc 10} Constitution saving throw or also become infected with the contagion. On a successful save, the Humanoid can't catch the contagion from that particular infected creature for the next 24 hours."
          ]
        }
      ]
    }
  ]
}