ESO Alchemy Essentials: Essence of Health Potion (Stamina and Armor) - BenevolentBowd.ca
Just how effective is penetration? (V2) I will be answering all questions in the comments! : r/elderscrollsonline
I finally found info on how spell penetration works, and made a simple "infographic" on Desmos! https://www.desmos.com/calculator/bqaac6rtnq : r/elderscrollsonline
Formulas to calculate percentage stats values - ESOUI