Jury-Rigging Raxilite

You've installed a specialized surgical module that allows you to repurpose scrap metal to perform emergency repairs on your body. You become trained in your choice of Crafting or Medicine (or another skill if you're already trained in both). Once per day, you can spend 10 minutes to feed 1 Bulk worth of scrap metal into your surgical module. If you do, you regain a number of Hit Points equal to five times your level. Scrap metal is generally readily available for free.