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Old 12-29-2016, 08:56 AM   #1
RogerBW
 
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Default Looking for a rule: modifying spell effects

I have a dim recollection of having seen, somewhere in GURPS 4e, a rule for applying Enhancements to standard GURPS Magic effects. I think that it produced either penalties to cast, or increased energy cost, or both.

Anyone know what I'm talking about?
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Old 12-29-2016, 09:08 AM   #2
Blind Mapmaker
 
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Default Re: Looking for a rule: modifying spell effects

You're probably looking for Spell Defaults from Thaumatology p. 39. Basically, a mage can apply 5% of enhancements for a skill penalty and increased energy cost.

These rules got expanded in Thaumatology: Magical Styles and used by Antoni Ten Monrós to create his Essential Magic spells in PYR 3.25 - though he gave 10% of enhancements for the same changes, but then these were fixed spells not on-the-fly modifications.
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Old 12-29-2016, 09:23 AM   #3
RogerBW
 
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Default Re: Looking for a rule: modifying spell effects

Thanks! I think it was the Magical Styles version I was thinking of.
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