[3.0] What is the creation cost of this item?

[MerakSpielman]

I'm lousy at figuring this out. Math hurts my head, but I just know somebody here can figure it out without even blinking.

Amulet of Sending: This intricate silver amulet can be used to send a message to a creature in a manner identical to that of the spell Sending. It can be activated once per week.

How would the price change if the activation were instead:

Once per month
Once per day
Once per hour
Any time - no limits

 

[Altamont Ravenard]

It would help to know what type of character casts this spell...

Cleric: Spell level 4, Caster level 7
Wizard: Spell level 5, Caster level 9
Sorcerer: Spell level 5, Caster level 10

The item would be a Command Word item. Its price is determined as such:

Spell level X Caster level X 1,800gp

Then you have to adjust it according to the number of charges per day it has. The Charges per Day adjustment is 5 divided by the number of charges per day.

So, once per month is 1/30 uses per day, ie 5 / (1 / 30) = 150.
Once per week is 1/7 uses per day, ie 5 / (1 / 7) = 35.
Once per day is 1 use per day (duh), ie 5 / 1 = 5.
Once per hour is considered the same as Illimited, ie no adjustment.

So, wether the item is made by a cleric, a wizard or a sorcerer, the price will be:

Cleric: 4 X 7 X 1,800 / Adjust. = 50,400 / Adjust.
Wizard: 5 X 9 X 1,800 / Adjust. = 81,000 / Adjust.
Sorcerer: 5 X 10 X 1,800 / Adjust. = 90,000 / Adjust.

The Adjust. (adjustment) depends on how many times per day you can use the device.

Once per month, Adjust. = 150
Once per week, Adjust. = 35
Once per day, Adjust. = 5
Once per hour / Illimited, Adjust. = 1

So, for example, this item, usable once per month, made by a cleric would cost
50,400 / 150 = 336gp (that's VERY unexpensive, and, in fact, the rules do not really cover using this item less than once per day). The same item, made by a sorcerer, usable an unlimited times per day would be 90,000gp.

Hope this helps!

AR

 

[MerakSpielman]

Thanks!

 

[Staffan]

It So, once per month is 1/30 uses per day, ie 5 / (1 / 30) = 150.
Once per week is 1/7 uses per day, ie 5 / (1 / 7) = 35.
Once per day is 1 use per day (duh), ie 5 / 1 = 5.
Once per hour is considered the same as Illimited, ie no adjustment.

That's a pretty daring extrapolation. I'd probably price 1/week at half the price of 1/day and 1/month or longer at 25% of the 1/day price.

 

[Altamont Ravenard]

That's a pretty daring extrapolation. I'd probably price 1/week at half the price of 1/day and 1/month or longer at 25% of the 1/day price.

Yeah I realized it when I figured out that the item would only cost 336 gp if usable once per month. I added a little note to that effect, and your method seems reasonable enough.

AR