Quote Originally Posted by Caduceus View Post
Each point of weapon dmg is equal to 4.482758620689655 (again not counting your loss of determination) So that would be 12 added to each heal based on weapon dmg to upgrade thyrus to +1.
Check out Praqzis' link; they do a detailed analysis. Each point of MD does not add a constant amount of HP to the heal; it's a multiplier.