Thanks for the input!
I'm thinking it sort of comes "catch included", as it's not going to help against either a Ghouls Claws or a Whampires Incite Emotion. The basic idea is that you have a much boosted energy recovery - you get your breath back (both physically and mentally) a lot faster. No matter the amount of energy you have, you won't really heal a broken bone any faster though.
That's why I specified the type of consequence, to clearly make it be something unlike the
obviously supernatural "wounds close and bones reset before your very eyes" of Recovery.
The effect of letting you cast one more spell if you choose is fully intended, and actually a big part of the idea - but I want it to have that bit of flexibility to be usable for a little more than only casting stress.
If I were to add similar variations to the other effects of Recovery (the faster out-of-combat healing, and the "endurance never restricts" parts) - would it still be a -2, or would it be a -3? Basically - is the "cures some but not all" enough of a trade off to cover two types of stress? The canon recovery powers works on all physical, no matter the source; this is relatively strongly limited on the physical side and somewhat limited on the mental side.