For the obsolete item, see potion of blood.
Blood is a liquid present within most natural creatures.
What has blood
Most player species have blood. The player species who don't are: undead species (ghoul, mummy, bloodless vampire), gargoyle, and djinni. Players may turn into a plant, nonliving, or undead transformation (Tree Form, Ice Form, Statue Form, Storm Form, Necromutation...), which removes their blood for its duration.
Draconians are cold-blooded.
Most monsters that are natural, and that are not insects, arachnids, jellies, or eyeballs, have blood. Some non-natural monsters, such as vampires, will also have blood. If a monster has either the "warm-blooded" or "cold-blooded" tag, it has blood.
While blood seems cosmetic, creating blood splatters all over the Dungeon floor, it is used for a few mechanics within the game:
- The spell Sublimation of Blood can only be cast if you are in a form with blood.
- Vampiric attack flavours (e.g. attacks from vampires; not including the vampiric weapon brand) only work on a target with blood.
- Skysharks check for blood with their Bloodzerk attack flavour. If a Bloodzerk deals damage to a target with blood, the skyshark will gain might for a short period. If the skyshark damages a valid target with bloodzerk again, it will go berserk.
- The player demonspawn mutation, Ignite Blood will create flame clouds whenever blood would splatter.
Despite its name, Wereblood does not require blood.
Creatures with blood can either be cold-blooded or warm-blooded:
- Cold-blooded creatures have a 50% chance of being slowed when they are damaged by any of the following cold sources: Freezing-branded melee and ranged attacks, Freeze, Frozen Ramparts, Ozocubu's Refrigeration, and freezing vapour.
- In addition, cold-blooded monsters are slowed twice as long by Metabolic Englaciation.
- Warm-blooded creatures have no specific vulnerabilities (other than having blood in the first place).