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Originally Posted by Plane
Yipes, great observation, I love easter eggs in those spell tables :)
Now the next question would be: would learning that once allow you to create OCPs of any college, or would we need to learn separate versions for each college?
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I'd say that it depends on the GM, but that makes sense to me.
Quote:
Originally Posted by Plane
The cost of casting OCP is -40% from the usual cost, exactly the value of 1-college magery (B67). This sets a convenient precedent for, if we wanted to invent other variations on the Powerstone spell NOT in GURPS Magic, simply adapting the limitations on Magery to come up with the energy cost for them.
T25 "Limited Colleges" for example would suggest: 2 colleges = 14 energy
3 colleges = 16 energy
4 colleges = 18 energy It could be a worthwhile skill to buy if these were 3 extra skills which allowed you to make any combination of colleges. If you had to learn a separate skill for each combination (ie one skill for fire+water, a 2nd skill for fire+weather, etc) then it could get prohibitively costly though...
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That looks good, IMHO.
Quote:
Originally Posted by Plane
Do you think having "one spell only" powerstones costing 4 energy to make would be going too far? If that were possible, I could see someone building a Powerstone-only Powerstone to get their foot in the door of making the costly unrestricted ones.
4*4=16 so that would still be tricky to make if you didn't have a valuable thing to enchant. The previously proposed "one college" manastone (or better yet, a "one spell" manastone costing either 1 or 4 energy) would still be helpful in building up to that.
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That also looks workable. Of course, I'm by no means an expert on the standard system, but your ideas fit what I do know about it, and it does not seem overpowered. Depending on the game, I'd either allow Powerstone-Only Powerstones, or not allow one-spell only powerstones at all, but if you hadn't brought it up, the idea of a cheap, Powerstone-only powerstone would probably not have occurred to me.