Passive-tree Keystone
Allocate Blood Magic on the passive tree when the build is prepared to pay Skill Mana Costs from Life and no longer depends on a Mana pool.
Related: Blood Magic passiveMechanic
Blood Magic
Blood Magic removes the character's Mana and converts Skill Mana Costs into Life Costs. It changes which resource pays for Skills, so Life recovery and cost management become part of sustaining every Mana-costing action.0.5.4d
Current data
Catalog version 0.5.4d
No direct 0.5 patch change is linked to this page. The displayed values are current for catalog version 0.5.4d.
What Blood Magic does
Current rulesBlood Magic sets Mana to zero and converts each Skill Mana Cost into a Life Cost. A Skill that would cost 40 Mana instead costs 40 Life before other applicable cost modifiers. Spirit reservation is not a Mana Cost, so Blood Magic does not turn Spirit reservation into Life reservation. The Keystone can be allocated on the passive tree or granted by Mask of the Sanguimancer, but receiving the same Keystone from both sources does not stack it twice.
- Mana is set to zero
- The character has no usable Mana pool while Blood Magic applies. Mana recovery, Mana regeneration, and Mana leech therefore have no current Mana to refill unless another effect changes the character's resource rules.
- Only Skill Mana Costs are converted
- The exact wording converts Skill Mana Costs to Life Costs. It does not say that every Mana loss, reservation, or unrelated resource payment becomes a Life Cost. Read the resource word and whether the effect is a cost before applying the Keystone.
- Cost modifiers still matter
- After conversion, applicable Skill Cost and Life Cost modifiers can change the amount paid. Mana recovery does not sustain the converted payment because the Skill is now removing Life.
- Spirit is a separate resource
- Persistent Skills normally reserve Spirit rather than Mana. Blood Magic does not remove Spirit and does not convert a Spirit reservation into a Life Cost because reservation and cost are different operations.
- Duplicate Keystone sources do not stack
- Mask of the Sanguimancer grants Blood Magic directly. Equipping it while the passive-tree Keystone is allocated does not create a second conversion or remove Mana twice.
Blood Magic interactions
3 casesMask of the Sanguimancer
The Unique helmet grants Blood Magic without allocating the passive-tree node. The granted effect is the same Keystone and does not stack with the allocated version.
Related: Mask of the SanguimancerLife sustain
Regeneration, leech, flasks, and other compatible Life recovery can replace Mana sustain, but paying a Life Cost can be dangerous when recovery is interrupted or the character is already near Low Life.
Related: Life Leech, Low LifeLimits and exceptions
4 rules- Blood Magic does not provide Life recovery or Life Cost efficiency by itself.
- Spirit reservation is not a Skill Mana Cost and is not converted.
- The Keystone does not make a Skill usable when another requirement, reservation, cooldown, or resource cost is unmet.
- A Blood Magic item and the allocated Keystone do not stack.
Related pages
5 connections
unique itemMask of the Sanguimancer+(20-25) to Evasion Rating
mechanicLife LeechLife Leech recovers Life from a percentage of damage dealt by a Hit. A normal Life Leech instance delivers its recovery over one second, subject to the source's eligible damage type and the monster's Leech Resistance.
mechanicLow LifeA player or monster is on Low Life while its current Life is 35% of maximum Life or lower. Exactly 35% counts as Low Life. Items can replace that threshold or make another resource determine whether the condition is satisfied.
mechanicReservationReservation commits part of a resource to an active effect. Most persistent Skills reserve Spirit, but some effects reserve Life or Mana. The reserved amount remains part of the resource's maximum and cannot be spent, recovered, or used as defence while it is reserved.
mechanicSpiritSpirit is a reservable resource used to activate and maintain skills with permanent effects, including persistent buffs, permanent minions, and trigger Meta skills.