Golden Thorn (Ioun Stone)

Price:18,000gp CL:12th
Each golden thorn is attuned to a specific type of bardic performance upon creation. When the wearer of a golden thorn begins a bardic performance, any numerical bonus provided by the attuned song increase by 1. Bonuses provided by this ioun stone do not stack with multiple stones of the same type, though multiples may be used at once, provided they are attuned to different bardic performances. 
Construction Requirements: 12th level, Bardic Performance class feature Feats: Craft Wondrous Item; Cost 9,000 gp.
Category:Magic Item
Category:Homebrew
Category:Equipment