Fury of the Immortals
If a creature or player takes damage from a hit equal to half or more of its total hit points, it must make a DC15 Con save or suffer an effect of System Shock.
To determine the type of shock, consult the System Shock table on p. 273 Dungeon Master’s Guide.
Characters have a chance of suffering a permanent injury if they:
- Take a hit that causes damage equal to half or more of their total hit points.
- Fail a death saving throw by 5 or more.
The character must make a DC10 Con save. To determine the type of injury, consult the Lingering Injuries table on p.272 Dungeon Master’s Guide.