You now have a supreme mastery of medical ninjutsu, allowing you to surgically alter yourself and others with biological and supernatural traits. You can create, implant, or alter things like kekkei genkai, jinchuriki, curse marks, and even the chakra network itself with ease, curiously lacking the side effects such alterations usually have. Due to your encyclopedic knowledge of the subject, you can create any of these listed effects even with no reference material. You can surgically alter yourself and others in relatively mundane ways (Increasing physical ability or chakra flow, changing physical appearance, restoring lost limbs, etc.) or in very esoteric ways (true resurrection of the dead, giving yourself superpowers from DNA samples, combining separate powers into a single stronger one, etc.)
Project V17/Powers/Shardless/Spiritual and Divine Power Upgrades/Paging Dr. Kabuto (Naruto)
From Worm CYOA Wiki
White Snake Sage
You now no longer need invasive surgery to achieve your results, your Sage Mode (which now lasts as long as you wish thanks to Jugo's kekkei genkai) can absorb DNA and copy powers from it, perform the main power's effects using chakra instead of surgery, and perform biological self alteration at will.