So, I was hoping someone could help me out here. It's noted that each time a spellcaster calls on Power, they take at minimum one box of mental stress. So, a character with high conviction gets four boxes...but that does that mean he can only use a few evocations, even weaker ones, before having to take a consequence? Doesn't seem like one gets to defend against it, so I wasn't sure. Quite frankly, I'm new to the Fate system in general, so I'm trying to wrap my brain around it. Much more used to DnD.