Quote:
Originally Posted by Mavelic
Hi,
Is there somewhere a rule that manages an exchange of duration against FP ?
For example, a spell that normally lasts 1 hour could last only one minute against a reduction of its cost in FP of 50% ?
I have looked a little in the books I own but it must be present somewhere?
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There is not, but I would certainly allow it at my table.
However as this is adding flexibility, beware. I'd bake in a penalty and minimum cost (a minimum even after accounting for high skill). By RAW the caster can always set a shorter duration and even simply stop a spell early (but that costs 1 FP).
My suggestion: For every 10% the cost is reduced, the caster takes a -1 penalty, up to a maximum of -90%. Even after accounting for high skill cost reductions the spell always costs a minimum of 10% rounded up.
This keeps ye olde "I cast No Smell of free because I have skill 15 and am only having it last 5 minutes". It also stops ye olde "I cast Stench* for 1 minute with a 10 hex radius
for free because I only need it for 1 minute and I have a [high skill]".
* And honestly I suspect it's the 'long' duration Area spells that will see this most applied to.