Help Requested: Figure Out Price of This Powerstone

[Stripe]

Hey, all. This forum has been great at helping me when I'm under a tough deadline for a game session. We're playing tomorrow early in the morning and I don't have a lot of time. I'm working on so many things right now.

Can someone figure out the canonical, rules-as-written price using Magic of a 50-point Powerstone in DF making it a sapphire using Treasure Tables? It can be a little over, but it needs to be a minimum of 50. This might be as simple as just figuring the price of the sapphire, then slap on the cost of the enchantment, but sometimes the enchantment fails raising the overall cost, IIRC. Don't want to spend a second on this because that will turn into an hour as I research all the ins and outs. You know what I'm saying. ;)

It the little stuff I don't have time for right now and I seem to recall an issue with costs listed in the chart in Magic. Don't want to try to dredge up the one or two threads about it either.

Thanks!

PS: If you dig it and want to play around more with DF8 and want to make it part of a ring or necklace or something, then by all means.

EDIT: No, make it a blue sapphire, not a ruby.

[sir_pudding]

Do you mean as a Power Item? DF doesn't normally use power stones.

[Stripe]

Really? Because I've been using Power Items with the RAW for them, but also using mana- and powerstones, etc. Does DF explicitly forbid them (page ref if so, please)?

EDIT: Regardless, I'm using Powerstones and it hasn't been unbalancing.

[William]

Magic prices a 50-point Powerstone at $69,500. By definition, this will be a stone of appropriate size, since cost determines how powerful a Powerstone can be.

I don't know what DF does to prices for such things.

[the_matrix_walker]

In the description of Power Items, in DF1 page 28, they explain that they use power items instead for simplicity.

[Stripe]

Originally Posted by DF2, p. 28

GURPS Magic introduces Powerstones: objects
(often gems) that hold extra FP for spells. These come
with complexities that don’t suit dungeon crawls. In
dungeon fantasy, any spellcaster may instead designate
one thing he owns – holy symbol, staff, etc. – as his
“power item.” It holds extra FP for casting spells, and
when they’re gone, they’re gone (like a Manastone, for
those with Magic).

It says that Powerstones are complex and that doesn't often suit the game, and thus the spellcaster "may" instead opt to designate one item as a Power Items. The way I read it, that in no way excludes casters from also taking Powerstones. Just one thing may be designated as, basically, a Manastone, using those rules, which don't conflict with Powerstones, which use different rules.

[Balor Patch]

I do read that as saying "don't use powerstones", and the designer's notes say "replace the standard rules for Wealth and Powerstones", not extend, enhance, or modify them.

Possibly more helpfully, DF8:45 stealthily added dedicated powerstones as "Regenerating Reserve $80/point".

[Stripe]

A dedicated reserve works nicely. Thanks!

[sir_pudding]

Originally Posted by Stripe

EDIT: No, make it a blue sapphire, not a ruby.

Weird that nobody has actually answered this yet, but I'm finally able to:

It's going to cost $69,500 as a quirk free powerstone (GURPS Magic p. 20). This is based on a Q&D enchantment cost of $20/point so the cost is the same in DF (Adventurers p. 30).

$1000 of that is the labor costs of enchantment leaving $68,500.

[(53/54)^50]*$68,500=$26,902.71 is the premium added on by breakage from critical failures, leaving $41,597.28 for the cost of the sapphire.

Sapphires have a value modifier of 35 so $41,597.28=(C^2+4C)x35 (Treasure Tables pp. 18-19).

So 35C^2+140C-41,597.28=0. [-140+((140^2-(4)(35)(-41,597.28))]^(1/2)]/2(35)=32.53 carets (.013 lbs).

It the little stuff I don't have time for right now and I seem to recall an issue with costs listed in the chart in Magic.

I think that was a problem with the 3e chart. I'm not sure.

There is the slightly weird-thing that a single quirk version of this stone costs $63,181.81 and a seriously quirked one costs $34,750. This is $6,847.38 less than the value of the stone! I guess enchanters take a loss when they mess up this badly. A sapphire that oozes blood, attracts bats, and sings off-key opera apparently isn't attractive even as a gem stone...

PS: If you dig it and want to play around more with DF8 and want to make it part of a ring or necklace or something, then by all means.

Gold?

A otherwise unmodified (no decorative features) gold ring adds $4,200 and 0.25 lbs. A gold chain would add $1680 and .1 lbs (Treasure Tables p. 18).

If the jewelry is included in the powerstone enchantment it reduces the cost of the gem required by the cost of the gold and it's weight by 9.14 carets for the ring, or 5.21 carets for the chain.

[Stripe]

Originally Posted by sir_pudding

Weird that nobody has actually answered this yet, but I'm finally able to:

Hey, thanks man! I really appreciate it.