Massive Damage

{
  "name": "Massive Damage",
  "page": 273,
  "__prop": "variantrule",
  "source": "DMG",
  "entries": [
    "This optional rule makes it easier for a creature to be felled by massive damage.",
    "When a creature takes damage from a single source equal to or greater than half its hit point maximum, it must succeed on a {@dc 15} Constitution saving throw or suffer a random effect determined by a roll on the System Shock table. For example, a creature that has a hit point maximum of 30 must make that Constitution save if it takes 15 damage or more from a single source.",
    {
      "rows": [
        [
          "1",
          "The creature drops to 0 hit points."
        ],
        [
          "2-3",
          "The creature drops to 0 hit points but is stable."
        ],
        [
          "4-5",
          "The creature is {@condition stunned} until the end of its next turn."
        ],
        [
          "6-7",
          "The creature can't take reactions and has disadvantage on attack rolls and ability checks until the end of its next turn."
        ],
        [
          "8-10",
          "The creature can't take reactions until the end of its next turn."
        ]
      ],
      "type": "table",
      "caption": "System Shock",
      "colLabels": [
        "d10",
        "Effect"
      ],
      "colStyles": [
        "col-1 text-center no-wrap",
        "col-12"
      ]
    }
  ],
  "ruleType": "O"
}