I've been dealing with an injury lately, so I've been having to choose between being stupid from pain or being stupid from painkillers. As such, I haven't been able to solve this one. However, I
have come up with a solution that
doesn't work, and I'll post it here in hopes that it will spark ideas for a solution that
does. Keep in mind, the goal here is still to be able to resolve spellcasting
in a single roll.
For a long time ICE products have had a convention that, in a practical sense, there is no such thing as "You
can't do _____". In RM, "You can't _____" actually means "You're at a -100 to any attempt to _____." An easy example of this is invisibility giving a -100 to opponents' Perception rolls.
Combine this with what is written about focus styles in
CoM:
When a character cannot use one of their styles at all (i.e. a Verbal user who is unable to speak, a Somaticist who is in a straitjacket), then the caster suffers a -50 penalty to spell casting for being unable to utilize their normal shortcut. If the character cannot use either style at all, the Mage will be unable to cast any spells.
And the above notion:
Trance = Mental Focus
Musical = Play Instrument
Song = Singing
Verbal = Public Speaking
Gestural = Signaling (Sign Language)
Somatic = Dancing
and the idea I came up with was that spellcasting total bonus = skill total from focus #1 + skill total from focus #2 + skill total for the spell being cast - 100.
The problem with this as a solution is that it broadens the range of results too much for a 1-100 based system.
At 1st level (6 ranks),
{30 (skill) + 20 (stat)
focus #1} + {30 (skill) + 20 (stat)
focus #2} + {30 (skill) + 20 (stat)
spell} - 100 = + 50
to the spell roll. However, this assumes +10 stat bonuses throughout, which to be honest is fairly unlikely. More likely is somewhere around +25 - +40. But comparing this to standard HARP rules, where 30 (skill) + 20 (stat) = +50 total bonus to the spell roll, that's not all that bad.
However, by the time you get to 20 ranks in all relevant skills, things have gone crazy:
{70 (skill) + 20 (stat)
focus #1) + {70 (skill) + 20 (stat)
focus #2) + {70 (skill) + 20 (stat)
spell) - 100 = + 170 total.
Compared to standard HARP rules, where 70 (skill) + 20 (stat) = +90 total bonus. That's nearly double. And that's at least theoretically possible for a 6th level caster. If the player keeps putting points into the focus skills and the spells both after he's reached the diminishing return of +1/rank, it gets even worse, a 20th level caster can expect to have a 250+ total bonus to his casting on nearly everything. In other words, there is basically nothing between fumbling and the spell getting the max possible result, unless you are casting under absurdly bad conditions. Even if the mage in question is bound, gagged and blindfolded, so that Trance focus is the only form available to him,
{70 (skill) + 20 (stat)
focus #1} + (
0 focus #2) + {70 (skill) + 20 (stat)
spell) - 100 = + 80 total.
which is nearly as good as standard HARP rules using
both foci.
Now I'll admit, I always liked the idea back in the day that an RM Mentalist could be paralyzed from the neck down and blind in both eyes, and if he could locate his targets could still be
an extreme hazard to his enemies. But sheesh...
Then again, you could apply the
number of ranks in the required skill, rather than the total bonus, too. But that would require a "no focus" penalty of a lot less than -100 if your low level spellcasters aren't going to be nearly helpless.
Opinions, suggestions? Cos I'll freely admit, I'm stuck.