Larian Studios Forums Divinity - Original Sin Divinity Original Sin - Mods Modifying Willpower/Bodybuilding effects

I would not know how, you can add potions that reduce BB and WP as a whole but I see no chance to reduce those 15% per BB/WP, even with scripting.

If something was in Data.txt, you can be sure that Baardvark would have done it in Scales a long time ago already. Since he did not, there is no known way to reduce the values ;-)