"If they devote themselves to the gods that lord above them and seek to control the way this world is shaped then you have no hope to convince them. Lest you consume the heavens themselves, the pitch black consuming till not a sparkle remains in the sky."

Drew Levana again, a little more dynamically this time.
and no she's not actually eating the stars, but a little light manipulation from a skilled magic user can make an enemy think whatever you want.