I was looking at stuff, and I saw this symbol, and it looks REALLY familiar, but I can't think of where else I saw it. Vaguely resembles the Oblivion symbol, but only vaguely, so I don't think that's it.
...And, er, ignore the filename. :=
EDIT: I cropped it, so if it would help to see the full image, say so.
EDIT 2: Guys, the line at the top is Oldy McHead's hair, ignore it. Just the dark crescent with the dot.
EDIT 3: Full image. I'm sure it wasn't on a Magic card, so I doubt this will help, but wh'ever.
EDIT 4: I was thinking of a fermata. Thanks SeventhSandwhich.