Well, I bet if you put in the effort you could wash it out of your system.

Not every spell is that powerful. [pause as she tries to sort through her pings.] I think I could cast a stronger one if I practiced, but it still wouldn't be nearly as much as a real lightning bolt.

[although she could conceivably conjure giant flaming rocks to pelt enemies with, a small nuclear explosion, a megablast of pure holy energy....]