I don't have my book handy, but I wanted to iron this out.
Obscure is, as I recall, an Area power which is sustained, so if you are stunned it goes away.
If you wanted to model a smoke grenade, I assume an extra would make it Continious, but even those can be turned off.
Would permanent be a reasonable flaw? It's not on all the time, but once it's used, the character can't get rid of the smoke at will, it has to blow away or something.
I figured an extra to make it Continious, and a flaw to make it "persistant" (lasts until it naturally dissapates) would be reasonable, does that sound fair?



