Hm... How many Clerics does it take to change a light bulb?
A: Two- one to change it and one to cast Divine Might.
How many druids does it take to change a light bulb?
A: Three- one to hold the bulb, one to wildshape into a dragon and pull the ceiling down onto the lightbulb, and one to make sure no animals are harmed.
How many wizards does it take to change a light bulb?
A: Maximized Time Stop!! Hey where'd the light bulb go?
How many Dervishes does it take to change a light bulb?
A: One- he holds it in place but he doesn't need anyone to spin him around.
Seriously though: Brilliant Flame could be really useful, but Ghostfire seems like it would just be distraction at best...
How many barbarians does it take to change a light bulb?
A: They aren't even literate, you really think they know what a light bulb is?
or
A: He broke it in the first place, I'm not letting him touch it again.