wetwlly/mooege — comment on commit c46749fa0801d2c6e674a6fed87b16327a4bae73
File: src/Mooege/Core/GS/Powers/Implementations/HeroSkills/Wizard.cs line 269
By mdz444:

Looks like this is best calculated using the "Resource Cost" tagmap formula, you can use it like this:

UsePrimaryResource(Eval(PowerKeys.ResourceCost));

BTW, in general, I find you never have to do any add/sub math on formula values, it's usually done for you in some way, just gotta find the right formula to use.