Quote Originally Posted by Jeff the Green View Post
Instead, I'd suggest being more explicit about what happens when you cast a Persevering detect magic. What I'm thinking happens is that the spell lasts 10 minutes/level and you don't have to Concentrate to maintain it, but you do have to Concentrate to get any knowledge beyond the presence or absence of auras. Right?
Isn't that exactly what it says?

I borrowed the wording from Persistent Spell there, to be honest, but it really seems perfectly clear to me; I'm not sure how to expound on it. Well, OK, I guess there is one thing I could change: make it obvious that concentration isn't required to keep it running, either.

New wording has a potential problem, though: are there any spells that are just duration: concentration, with no maximum?