Scrimshaw of vampyrism

The Scrimshaw of vampyrism is available from the Player-owned ports minigame. It can be made in the Player-owned ports workshop at 92 Fletching from 10 ancient bones after all four scroll pieces have been obtained. It requires 80 strength to wield. If a worn Scrimshaw is used on another worn Scrimshaw, their times will stack and one will disappear.

The description in the Captain's Log is as follows:

Steal life from enemies with every melee hit.

Once every hit, the scrimshaw will absorb 1-5% of the damage dealt, in a Soul Split-esque way. The effect will stack with the Vampyrism aura and Soul Split. This effect will ONLY work with melee attacks. Ranged and Magic attacks will not be affected. The scrimshaw lasts 3 hours in combat.

The scrimshaw converts to 4,000 gold coins on death in the wilderness regardless of how much time is left on it.