An Elden Ring wiki

Serpentbone Blade

The Serpentbone Blade is a katana that builds poison instead of bleed. It scales mostly with Dexterity and needs 22 Dex to wield properly.

Its skill is Double Slash, a quick pair of cuts. The spines running along the blade are coated in a lethal venom.

Attack power
Physical 120
Guarded damage negation
Physical 45
Magic 30
Fire 30
Lightning 30
Holy 30
Guard boost 30
Weapon skill
Double Slash
Passive effect
Inflicts Poison buildup (66)
Damage negation
Resistance
Special effect
Effect
Upgrades / variants
Skill effect
Compatible weapon types
Abilities

Where to find it

Given by Tanith, the Volcano Manor proprietress, after you defeat Rileigh the Idle.

Item description & lore

A grim katana modelled after a serpent’s bone, with a dense row of spines jutting from the cutting edge, each one coated in deadly poison.

Notes & tips

  • Has passive poison buildup.

Found at

Dropped by

NPC

Tanith, Volcano Manor Proprietress

Reward from

More like this

Weapon

Nagakiba

Weapon

Meteoric Ore Blade

Weapon

Sword of Night

Weapon

Star-Lined Sword

Weapon
Type:
Damage: ,
Game:
Attribute scaling: Str E / Dex C
Requirements: Str 11, Dex 22
Weight: 6
FP cost: 6 / 3 / 3

Keep exploring

Bosses
Weapons
Spells
Locations
NPCs
Questlines