Channel Scarring

Overview

Channel scarring is the wear of a working life. A caster who moves more than the body can mend, season after season, ends with hands that shake, a sleep that never rests, and spells that cost more for less. It frightens casters more than backlash does, because it comes quietly and does not go away. Villagers know it by its plainest saying: healers age early.

Cause

A body can safely carry only so much energy (see the biological limits in Biological Affinity). Each heavy casting does small harm, and rest repairs most of it. Where the casting outruns the repair, the harm builds up in the paths magic travels through the body until they scar: they carry less, lose more on the way, and tolerate less strain. One catastrophic failure can scar them all at once. The mechanics, and the three classes of permanent harm, belong to Costs and Side Effects.

Who It Strikes

Anyone who casts for a living long enough. Healers take it most, because they cast often and cannot refuse the dying; then battle-mages, plague-year temple casters, and trade casters with long workdays. Each school leaves its own mark: scarred nerves in Crucible casters, an uneven heart in Storm casters, numb and cold limbs in Frost casters, dulled smell and touch in necromancers. Peoples who work against their own affinity scar sooner.

Signs and Course

It begins with signs a caster can hide: more effort for the same working, longer to recover after it, a familiar spell that wavers, side effects that are still there the next morning. A wise teacher sees these first.

Then the body shows it. A tremor stays in the hands; the caster sleeps badly and wakes tired; feeling in the fingers fades. Some lose taste, smell, or a part of hearing. Some feel less of everything, laughing and grieving at half strength, which their families notice before they do. Over years come barrenness, a weak or uneven heart, affinity that pulls towards the wrong school, and a need for ritual aids where none were needed before.

Contagion

Channel scarring does not pass between people.

Treatment and Its Limits

Rest is the first cure and the only cheap one. Schools and temples grade casters by their signs through the four risk bands of the diagnostics for magical overuse and order rest, lighter work, or a stop to casting. Herbs for sleep and for the nerves, warm baths, and work with the hands help a little.

Healing is worth having if it comes early. A healer of the same people works best (see the compatibility bands), though every session costs that healer, who may be scarring too. Acute strain often clears; repeated small harm improves but leaves a mark; settled scars are manageable rather than curable. A forced restoration can return power at the price of tolerance, and pressed too often on the same damage it can tip into Failed Mending.

Mortality

Channel scarring seldom kills by itself. It kills casters who keep casting through it, and it shortens lives: an old healer is often younger than she looks. Most survivors keep something, a tremor, a deafness, a smaller reach, or the end of their trade.

Lore and Belief

Casters call it "wearing thin" or "burning down to the wick". Many peoples see it as the honest price of service, and an old healer's shaking hands are respected in the way a smith's burns are. Others say the magic itself has turned on the caster, or that a patron god has stopped listening. Among the schools it is a fault of discipline, and a caster who hides the early signs is blamed more than one who reports them.

In the Medieval Era

Every village knows the folk healer who has grown old too early, and is careful how often it sends for her. Where a school, temple, or warlord keeps a firm hand on its casters, it keeps tallies, orders rest, and stops those who have been warned; elsewhere, nothing stops a healer working until she breaks. War and plague years produce a generation of scarred healers at once.

Where It Appears

• Costs and Side Effects (long-term side effects, permanent casting harm, diagnostics for magical overuse, regulation of overcasting, school-specific side effects)
• Biological Affinity (biological limits)
• the Writers' Guide chapter How Magic Works
• the Writers' Guide chapter Magic in Ordinary Life