Satan is a Christian idea not wiccan. I don't believe in God or the Devil but I do believe in good and evil and that theres a little bit of both in all of us. It depends on which wolf you feel to determine if there's more evil or good in you. I have seen so many supposed Christians who are more evil than some atheist I've met because of how they behave.
Cleansing Blessing Affirmation ~ I cleanse myself of all selfishness, resentment, critical feelings for my fellow beings, self-condemnation, and misinterpretation of my life experiences I bathe myself in generosity, appreciation, praise and gratitude for my fellow beings, self-acceptance, and enlightened understanding of my life experiences. By Lidia Federico
Now, I'm a Christian myself, but this graphic has a good point for any Christian who is talking to those who are not Christians. If someone doesn't believe in Hell, then threatening them with it is like threatening a Christian with not going to Valhalla.