Go to eb/data/export_descr_ancillaries.txt. When you are there, use Ctrl-f and type in "BattleSurgery". Then you can see all the different healing ancillaries and how good they are at it.
Chirugeon has a BattleSurgery of 10, so I'm assuming it is the best for healing, but it doesn't have any fertility effects like most of the others.
Bookmarks