need help with tweaks to sacred scabbard/scabbard of keen edges

[atom crash]

I wanted to make a sacred scabbard and/or scabbard of keen edges available to the PCs in my game, but the 3 times per day is going to basically equate to "unlimited usage" in my game, meaning they'll get a much bigger bang for their magic item buck from these items. So I'm looking at limiting the usage. What would be the approximate value for these items with either of the folllowing tweaks (or suggest another option for me):

Option 1: Instead of 3x per day, the item is usable once per day and its effect lasts for 10 rounds.
Option 2: Instead of 3x per day, the item is usable once per encounter and its effect lasts for 3 rounds.

Thanks in advance.

 

[FEADIN]

(1800x5x3)/5= 5400gp market price.
As in the DMG.
Price X caster level(minimum) X spell level divided by (5 divided by use per day).
Because you want to lower the duration, normally 10min/level, you can make a discount, maybe half the price for 1 use, you can keep that price for uses of 3 rounds per encounter.

 

[nittanytbone]

You could also compare the price to a Wand of these spells. For example, if your campaign features two encounters a day, a PC could get 25 days of usage out of a wand of Keen Edge. That's several levels of adventuring with the 13 encounters/level guideline.


A level III spell in a wand costs about 11K, compared to the scabbard's 16K. So, if the campaign is unlikely to last more than another 3-4 levels, the wand is actually a much better bet than even an unnerfed scabbard.

A Pearl of Power (level III) is a better deal yet when encounters/day are limited, at only 9K. The fighter could chip in for one of these puppies and ask the Wizard to cast Keen Edge 1x/day for him, or the fighter could finance some scroll scribing to get the extra spells/day in as well. The Pearl has the added bonus of being multipurpose.