Steve Jackson Games Forums Trait modifier - variable effect?
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 09-02-2019, 01:45 PM #1 nick_coffin MIB   Join Date: Aug 2004 Trait modifier - variable effect? What's the modifier on a trait that instead of providing a fixed advantage, becomes variable based on a die roll? For example, let's say I had a Sorcery spell that provided +1d bonus to ST for all purposes. How much would that cost? I know that you can convert each +4 to a die roll into an additional die, so would +1d ST be the same cost as +4 ST (i.e., 40 cp)? (Not including any power modifiers such as sorcery's -15%.) Also, what would a variable duration do the cost? Assuming that most Sorcery spells have a duration of 3 minutes, how would a duration of 3d seconds affect the cost of the spell? Last edited by nick_coffin; 09-02-2019 at 01:50 PM.
 09-02-2019, 02:18 PM #2 whswhs   Join Date: Jun 2005 Re: Trait modifier - variable effect? I would suggest looking at the conversion of dice of damage to fixed point values for Innate Attack. The same ratios ought to be tolerably fair. __________________ Bill Stoddard I don't think we're in Oz any more.
09-03-2019, 08:56 PM   #3
Plane

Join Date: Aug 2018
Re: Trait modifier - variable effect?

Quote:
 Originally Posted by nick_coffin What's the modifier on a trait that instead of providing a fixed advantage, becomes variable based on a die roll? For example, let's say I had a Sorcery spell that provided +1d bonus to ST for all purposes. How much would that cost? I know that you can convert each +4 to a die roll into an additional die, so would +1d ST be the same cost as +4 ST (i.e., 40 cp)?
I imagine so, pretty sure I've seen that done a few times, in one direction or the other.

Quote:
 Originally Posted by nick_coffin Also, what would a variable duration do the cost? Assuming that most Sorcery spells have a duration of 3 minutes, how would a duration of 3d seconds affect the cost of the spell?
There's a +0% "Fixed Duration" modifier in power-ups which changes margin-based into 3...

As for changing fixed into unfixed and using dice instead of a margin, I guess you'd do 2d6 per 7, so if 3 minutes is 180 seconds or roughly 25*7 (165) I guess it'd work out to 50d6 seconds, so reducing that to 3d seconds would be like 1/12 duration, so I guess you would get whatever -% that 1/10 duration is worth as the closest amount.

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