[Path/Book Magic] Expanding on The Magic of Stories

[Prince Charon]

Originally Posted by Anaraxes

In several places in the rules, 25 EP is equated to 1 CP. (E.g., Points For Energy in Impulse Buys.) One Use Only is 1/5th cost (not -80%), so 5 EP = 1 CP of single-use Advantage. Gizmo is 5 CP, so putting all those together suggests 25 EP for a ritual that grants a single use of Gizmo.

That's a little high compared to the examples for Energy Accumulating spells -- a factor of two -- but not completely beyond the pale. If it's meant to be used by fairy-tale NPCs as plot points, then the exact cost really doesn't matter.

Other caveats: the 25:1 ratio is a guideline that's worked in practice in several places, not actually a rule or fundamental system design principle. And swapping out magic systems are one area where those sorts of rules of thumb might not port well, so scrutiny is wise. But even if you tweak the ratio, the basic concept might give you a way to price Advantages-as-rituals in general, while remaining at least somewhat consistent with other rules.

Good analysis, only problem is that for Energy Accumulating, I prefer to use costs more consistent with the ones in the book, so I'd still end up tweaking it a lot. Right now I'm thinking of just using the numbers I selected before, and just need to expend the description to the point that it's useful (which may mean calling it 'a modified use of the Gizmo advantage' in the text, or it might not).