The "Glove of Knife" can be used if you click on it rather than just when scratching. It costs 0 energy and can be used infinitely per turn.

Sprites for the new items are looking good! Definitely seeing improvement.

Lots of really interesting stuff in here. Button Token and Pouch Locator are ingenious, in general I like how you combine functions into one item that would be a combination of 2 less rare items I would carry around. Also dig the playing around the edges of what item type does what -- Book and Accessory giving defense, for example.
Also fun to see some new curses pop up!
Some sprites could use some polishing. I did some finetuning on some for my own use, you want 'em?

The Ring of Frost is displaying a missing sprite. I checked the json, and the image name is listed as "Ring Of Frost.jpg" rather than the actual name of the image, ringoffrost.jpg.