Note on conflicting descriptions: Some aggregate guides list Demonic Blood as “+9 Max HP with Armor/Thorns.” Those summaries are inconsistent with stacking behavior observed in community testing/footage and recent patch discussions. This page follows the stacking Max HP on kills model until official notes state otherwise.
Demonic Blood is a scaling health item that rewards aggressive play. Each kill adds to your Max HP until you hit the item’s cap, making it a cornerstone for high-HP “tank” archetypes and any build that converts health into damage. If you’re new to items, browse the full Items database index first.
Damage scales with Max HP. Demonic Blood’s scaling feeds this directly for “HP → DPS” builds.
More Max HP means more to refill; passive regen stabilizes low-risk farming.
Trade regen for big Max HP. Use with caution; it supercharges HP totals for HP-scaling builds.
High-HP or sustain-oriented characters—like Vlad—benefit the most, especially when combined with Beefy Ring or steady healing from Medkit.
Q: What exactly does Demonic Blood do?
A: It stacks Max HP off kills up to its cap (community-verified model: +0.5 Max HP per kill, 200 stacks).
Q: How do I unlock it?
A: Increase your Max HP using Blood Magic a total of 400 times across runs.
Q: Why do some guides say “+9 HP, Armor, Thorns”?
A: That summary appears in several aggregate lists but conflicts with stacking behavior and recent discussions. Unless an official patch note states otherwise, treat it as outdated.