Quote Originally Posted by Curagaja View Post
Don't mind me. Just gonna quote what the game says when you mouse over Detemination:

"Affects the amount of damage dealt by both physical and magic attacks, as well as the amount of HP restored by healing spells. Auto-attack potency is also affected."

I'd have taken and posted a screenshot but I'm busy and don't feel like logging out to upload it.
And people misunderstand it half the time, it's all on things you do, not only attacks you do and heals you take. Attacks and Heals you do.