First off thanks in advance for any and all help.
I've currently started to run a campaign which focuses on a secret order whose motto is "Triumph through Sacrifice" to show this I'm trying to create their swords which could use fighters strengh to enhance it's abilities.
Something like: +1-3 costs 1 Con damage per enhancement point.
+4-5 cost 2 Con damage each
Effect lasts for 10mins or until sword is sheathed,
ability damage can not be healed while weapon is weilded.
I want the items to be balanced but have a physical cost for using them more often. I noticed a +5 weapon is 50,000gp and it cost 36,000gp for a belt of mighty constitution, which is the prices I was going off of.
any help, advice, or balancing is much appreciated