Edit: Long post, so I put the images in spoiler tags. Skip to the end for conclusion. Well, the new Woodsman III promotion now gives the unit the ability to heal units in the same tile an extra 15%. Does this stack with any of the Medic promotions? I made a test using WorldBuilder on a finished game of mine. I got a catapult down to 1.8 health (out of 5), standing still and so eligible for healing. On its own: Spoiler : ...it healed from 1.8 to 2.3: Spoiler : With the help of a Medic I unit: Spoiler : ...it healed from 1.8 to 2.8: Spoiler : With the help of a Woodsman III unit: Spoiler : ...it went to 3.0: Spoiler : With a Medic III unit: Spoiler : ...it's up to 3.5: Spoiler : With different Medic III and Woodsman III units: Spoiler : ...it's still only 3.5, the Medic III takes over: Spoiler : With Medic III near the tile and Woodsman III on the tile: Spoiler : ...it's 3.5 again, same Medic III taking over: Spoiler : With a Medic I, Woodsman III unit: Spoiler : ...it's 3.5, the equivalent of a Medic III: Spoiler : And with a Medic III, Woodsman III unit: Spoiler : ...it's up to 4.3: Spoiler : In conclusion: - if the Medic and Woodsman III promotions are on different units they don't stack up, the bigger healing "wins"; Medic III has the best healing rate - if the Medic and Woodsman III promotions are on the same unit they do stack up; Medic I, Woodsman III is equivalent to Medic III, while a Medic III, Woodsman III unit has the best healing rate you can get This could be a real boost for warrior traits as Woodsman III + Medic III is pretty hard to get (50XP for 7 promotions because of Combat I needed for Medic I). Imperialistic leaders can stack experience from faster generated Great Generals on the super Medic unit. Charismatic leaders don't need as much experience to get it (38XP for 7 promotions). Aggressive leaders give the Melee/Gunpowder units a head start with the free Combat I promotion (37XP needed). And Montezuma's Jaguars get Combat I and Woodsman I as free promotions (26XP needed). Any combination of two warrior traits is also desirable: Boudica's Charismatic/Aggressive (27XP), Genghis Khan's Agg/Imp and Cyrus's Cha/Imp. The absolute best would be a Jaguar of Boudica of the Aztecs, which would get Woodsman III and Medic III with 20XP. Basically, build the Jaguar (without Barracks!) and attach a Great General. Anyway, just wanted to post this as I've wondered myself about it but didn't have the time or mood to do the tests before.