Arcane gems — Bloodborne
Arcane gems — Blood gems, Bloodborne. Compare percentage, flat addition and shape for an arcane setup.
On a compatible weapon
The percentage only strengthens its own damage type. On a convertible, purely physical weapon, the elemental addition changes base damage and makes its scaling depend on Arcane.
On a weapon with native mixed damage, the bonus does not convert the physical component. Check which damage line actually increases on the weapon screen.
Compare variants
Brainsucker gems favour a large flat arcane bonus. They serve a different purpose from a +27.2% gem: test moves with multiple hits and weapons with low starting attack.
Where to find this variant
| Published effect | Shape and dungeon | Target and glyph |
|---|---|---|
| +27.2% arcane | Triangle · Isz, layer 1 | Merciless Watchers · 5pwujscd · rare |
| +24.8% arcane + secondary effect | Triangle · Isz, layer 3 | Ebrietas · e2ts7vub · Cursed rite only |
| +9.8% physical +72.5 flat arcane | Triangle · Isz, layer 1 | Brainsucker boss · huy83p9r |
These routes use Fetid, Rotted and Cursed rites unless stated otherwise. Values describe possible variants, rather than guaranteed drops. The glyphs are published in the wiki; their online availability has not been verified.
Gem effects and acquisition
The arcane damage percentage only strengthens that component. An elemental gem can convert a compatible, purely physical weapon.
After conversion, damage scales with Arcane. A weapon with native mixed damage keeps its separate components.
Compatible percentages multiply across gems. Flat additions remain separate from the product of percentage bonuses.
| Effect | Value |
|---|---|
| High percentage | +27,2 % |
| Abyssal alternative | +24.8% + secondary effect |
| Brainsucker | +72.5 flat points |
One or three identical gems
| Effect | Value |
|---|---|
| One gem | +27,2 % |
| Three gems | +105,8 % |
Calculated on the affected attack component, before enemy defence. This percentage alone does not predict the damage of a hit.
+27.2% arcane
| Effect | Value |
|---|---|
| Arcane ATK | +27,2 % |
One random curse
https://www.bloodborne-wiki.com/2015/10/individual-blood-gems.html
5pwujscd · Isz · 1 · Merciless Watchers & Watcher Chieftain
- Fetid
- Rotted
- Cursed
rare
+9.8% physical +72.5 flat arcane
| Effect | Value |
|---|---|
| Physical ATK | +9,8 % |
| Flat arcane | +72.5 points |
One random curse
https://www.bloodborne-wiki.com/2015/10/individual-blood-gems.html
huy83p9r · Isz · 1 · Brainsucker boss
- Fetid
- Rotted
- Cursed
Forbidden Woods triangle
| Effect | Value |
|---|---|
| Arcane ATK | +10,5 % |
https://www.bloodborne-wiki.com/2015/10/individual-blood-gems.html
Forbidden Woods · Fixed treasure · Entrance to the underground cave on the path to Iosefka's Clinic.
Found in the world: no chalice glyph is required.
Nightmare of Mensis droplet
| Effect | Value |
|---|---|
| Arcane ATK | +18 % |
https://www.bloodborne-wiki.com/2015/10/individual-blood-gems.html
Nightmare of Mensis · Fixed treasure · Middle bridge near the collapsed wall and the Brain of Mensis.
Found in the world: no chalice glyph is required.
Lighthouse cave triangle
| Effect | Value |
|---|---|
| Flat arcane | +47.3 points |
| Arcane ATK | +4,1 % |
https://www.bloodborne-wiki.com/2015/10/individual-blood-gems.html
Fishing Hamlet · Fixed treasure · Upper platform of the parasite bed in the lighthouse cave.
Found in the world: no chalice glyph is required.
Ebrietas: arcane and flat addition
| Effect | Value |
|---|---|
| Arcane ATK | +24,8 % |
| Flat arcane | +15 points |
One random curse
https://www.bloodborne-wiki.com/2015/10/individual-blood-gems.html
e2ts7vub · Isz · 3 · Ebrietas
- Cursed
Published combination. The secondary effect and curse remain random.
- A gem with +65 Arcane scaling does not supply an element on its own.
- Fire Paper, Bolt Paper and Empty Phantasm Shell can no longer be applied to a converted weapon.
Source : Bloodborne Wiki · CC BY-SA 3.0