Creating a +2 Stone of Good Luck (Luckstone)

[Hypersmurf]

Re: Creation Rules

5. If the item doesn't use a chakra space, remember to double the final cost.

So since the Luckstone is not a chakra item (it just needs to be in the players possession to function) you would take the base cost of a Luckstone (10,000), add double the base cost for an additional luckstone (20,000) and then multiply the whole thing by 2 for the final cost (60,000).

I knew there was something bothering me!

A slotted Luckstone would only cost 5000. Step 5 is already built into the 10k cost you're starting with. So that final doubling you're doing to get 60k is wrong.

As well as dcollins' point about not needing the 100% increase to add a power to an unslotted item.

So to create a luckstone with two non-stackable +1 bonuses - one useful, one redundant - to saves and checks is only 20k, not 60k.

A luckstone with a +2 bonus to saves and checks, however, is 40k.

-Hyp.

 

[Kreln]

It's beginning to make some sense to me now.

For some reason I didn't take notice to Table 8-40 in the DMG (pg. 242), which lists the formula for calculating a luck bonus (Bonus squared x 2,500 gp). This seems to match the breakdown that Hong has listed above.

However, the description for the Luckstone lists a Luck bonus to Saving Throws, Ability Checks and Skill Checks. Hong's breakdown calculated the cost as follows:

Cost breakdown for stone of good luck +1:

+1 luck bonus to saves: 2,500
+1 luck bonus to skill checks: 2,500
Total: 5,000
x2 for unslotted item: 10,000


Cost breakdown for stone of good luck +2:

+2 luck bonus to saves: 10,000 (2^2 * 2,500)
+2 luck bonus to skill checks: 10,000
Total: 20,000
x2 for unslotted item: 40,000

Is the +1 bonus to ability checks included in the skill checks cost? If not then the cost for a +1 Luckstone using that formula would be:

+1 luck bonus to saves: 2,500
+1 luck bonus to skill checks: 2,500
+1 luck bonus to ability checks: 2,500
Total: 7,500
x2 for unslotted item: 15,000

 

[Mustrum_Ridcully]

Is the +1 bonus to ability checks included in the skill checks cost? If not then the cost for a +1 Luckstone using that formula would be

Probably, these are two different bonus. Remember, a creature with a nonability does always fail ability checks on that ability, but it can still gain Skills for it and does not automatically fail these checks. (Like Undead Spellcasters and Concentration).

Maybe it would be easier if you drop these different sources of bonus, and instead create a new one:
Luck Bonus to every roll made with D20 without needing any slots: 10.000 gp.

Anyway, it is mathematically uninteresting how you get the base price, unless their is a fix cost that doesn`t increase with level (like the base price for a Masterwork Longsword if you enhance your weapon).

40.000 cr seems to be the way to go...

Mustrum Ridcully

 

[Ridley's Cohort]

Is the +1 bonus to ability checks included in the skill checks cost? If not then the cost for a +1 Luckstone using that formula would be:

+1 luck bonus to saves: 2,500
+1 luck bonus to skill checks: 2,500
+1 luck bonus to ability checks: 2,500
Total: 7,500
x2 for unslotted item: 15,000

Yes. I believe the logic is that an Ability Check is really just a skillless Skill Check. Many skills explicitly replaced ability checks under the right circumstances.

Balancewise, strict Ability Checks are too rare to justify a separate category.