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Blood Boil

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Blood Boil

Cost: 18 Mana (-2 per Spell Level)

Kills the victim by boiling their blood from within, but returns part of the damage inflicted upon the caster.

Damage Type: Physical

Blood Boil was a spell in demo version of Diablo I. In the released game, it was cut.

General InformationEdit

Blood Boil would inflict 100% of the target's current Life in damage, but only in close combat (changed to ranged cast later). The mechanic was later reused for Bone Spirit. In return, it would also drain the character's Life, as a percentage of the amount drained from the victim.

Damage Calculation:

  • Character Life Drain: (100% - (12,5% x Spell Level)) of the damage inflicted

Past spell level 8, it would actually heal the hero, even beyond maximum Life. Ironically, that would result in immediate game crash.

Presumably this spell would not work on Undead.

The icon was later reused in Hellfire for the Rage Skill.

Diablo I Spells
Class SkillsIdentifyItem RepairRageSearchStaff RechargeTrap Disarm
Page 1FireboltCharged BoltHealingHeal OtherHoly BoltInferno
Page 2Fire WallFlashLightningResurrectStone CurseTelekinesisTown Portal
Page 3Chain LightningElementalFireballFlame WaveGuardianMana ShieldPhasing
Page 4ApocalypseBlood StarBone SpiritGolemTeleportNova
Page 5BerserkFire RingImmolationLightning WallReflectSearchWarp
Scroll and Staff OnlyInfravisionIdentifyJesterMagiMana
CutBlood BoilBlood RitualDoom SerpentsEtherealizeInvisibilityMindmaceSentinel

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