Looking for tempting and corrupting spells.

[MammonAzrael]

What sorts of spells and effects to you know of that feel tempting and corrupting? The sorts of things that manipulators or Devils would use? Spells more in line with Charm and Suggestion, not Dominate.

As a corollary, what sorts of things are good for running away or turning the tide when said manipulation fails?

[Inferno]

Wall spells for running away (or illusory walls)
A wall of fire usually makes people think twice about giving you a hard time.

Alternatively disguise self, for when fire isn't quite subtle enough.

[NNescio]

Polymorph/Disguise Self into a celestial.

Combine with Misdirection or Nondetection.

Oldest trick in the book. (http://en.wikipedia.org/wiki/Satan)

[Urpriest]

Extract Gift seems in line with something a faustian demon would give you.

It's not spell-based, but Fiendish Grafts (and the Fiend of Corruption PrC that can bestow them) are a good way to tempt people to evil.

I think there's a spell somewhere called Morality Undone?