Player's Handbook · Chapter 34

Module: High Magic

High Magic module (on by default). It adds the Arcanum, vials of distilled power, war-mages, great arcane works and portals.

Vials

A vial is distilled force sealed in glass: sunlight, seawater, breath, grave-chill. It is the fuel of high magic.

  • Making them: an Arcanum master makes 1 vial per season at T1, ×1/3/5/8/16 by tier.
  • Keeping them: vials keep 4 seasons, then weaken to half strength, then go inert.
  • Trading them: they trade like luxuries (×2 face value, 200 gp). A vial gifted in a deal is +4.
  • On the books: vials have their own needs row.
  • Thieves and taxes: vials can be stolen (intrigue: steal) or tithed (10% where the Arcanum hosts a Temple, with Faith and Oaths).

Holdings

HoldingT1 cost / time / upkeepT1 output → T5DefensePrereq
Arcanum100,000 gp / 18 mo / 5,000 gp1 master, 1 vial per season → 4 masters, 16 vials+2 → +4Duke
Bloodworks (rename it for your setting)5,000,000 gp / 12 mo / 50,000 gpa realm-scale laboratory: 1 staged project, 1 vial per season per master → 5 projects in parallel+2 → +5King

The Bloodworks is built as an Ultimate Work. Each of its research stages costs 1 vial per season per master.

Units

UnitBase PowerUpkeepRequiresNotes
War-mages5 (8 vs massed troops)400 gp + 1 vial per battleArcanummilitia facing them −1 morale
Blood initiates6 (9 frenzied)350 gpBloodworksfrenzy once per battle: +3 Power, then half-Power next battle

Portals

A portal costs 100,000 gp, 3 seasons, 1 master and 1 vial per season to build, then 5,000 gp + 1 vial per season to hold open. Each portal beyond the first costs +1 vial per season more. A portal is a site (tags: portal, fortified, contested).

What a portal changes:

  • Command: a settlement with an open portal counts as 0 miles for orders, decrees, Trial enforcement, council votes and officer travel.
  • Troops: soldiers and officers step through in a day.
  • Not supply: grain, timber, stone and an army's supply still travel the slow road. A portaled army eats at its real distance band unless something covers it locally.
  • Watched: spies and assassins working through a portal suffer −1 secrecy, because everyone watches the gate.
  • A target: close it (1 Authority + a master), seize it (a siege), or sabotage it (stage 6 collapses it for a season).

Court Arcanist

An officer post. + rating to research rolls; +1 vial per season per 2 points of rating.

Example: a T3 Arcanum makes 5 vials per season. The realm burns 2 (one gate, one war-mage battle) and banks 3, until the price of vials triples in a bad year.

Manual updated Nov 8, 2026.