I know that you can brew a potion for any 3rd-level or lower spell that targets one or more creatures : If you store a personal spell in a wand, can you then target other creatures with that spell?.
The Magic Circle against Evil has no target, but the area specified mentions a touched creature.
Level: Clr 3, Good 3, Pal 3, Sor/Wiz 3 Components: V, S, M/DF Casting Time: 1 standard action Range: Touch Area: 10-ft.-radius emanation from touched creature Duration: 10 min./level Saving Throw: Will negates (harmless) Spell Resistance: No; see text
So can there be a potion of Magic Circle against Evil? And what will it do?