From the Aerbax's Prodigal Harbinger quest introduced in Dark Materials.

Harbinger Blood Infusion
Value: 20
10 Burden Units
A potion of multihued liquid. It glows with a soft white light.


Drink me.

Casts the following spells: Harbinger Blood Infusion (Spell)

Spellcraft: 300
Mana: 50

Spell Descriptions:

  • Harbinger Blood Infusion (The Harbinger's blood suffuses your being increasing your natural armor by 300 points.)

Notes

  • Give the Blood of the Harbinger to Issk (instead of the Emissary) and you will receive this potion.
  • This potion can be turned back into Issk for 10% xp.
  • Stack Size: 100
  • Lasts 15 minutes.

You cast Harbinger Blood Infusion on yourself, surpassing Executor's Blessing