Fire

The exemplar for the materia type, and the reason _meta/relation-types.md gained a grants edge.

Why materia and ability are separate pages

A materia is an object — something with a price, a slot, an AP curve, a place in the world. An ability is an effect — something with an MP cost and a damage formula. [[canon/ability/fire]] is cast by Fire materia, by an enemy with no materia at all, and by an item; the effect is one thing with several sources.

grants is the edge between them, and [[canon/ability/fire]] carries the inverse granted-by without declaring anything — the build derives it.

ap_to_master and price are absent; they come from the kernel materia table.

On concerns

The link to [[canon/concept/mako]] is marked inferred. Materia being crystallised Lifestream is something the game explains around rather than states as a mechanic, and this page would rather say "someone reasoned this" than pretend the manual said it.