>> is it possible to be a Satanist and oppose the idea of the belief in magic? I cannot believe in something without evidence <<
Why oppose it? It's probably more useful to approach it with an open mind, either way.
The only way you will gather evidence is by exploration. If you find nothing in it for yourself then there is no obligation to practice it, no.
"Spiral Out: a bleak, page-turning, unforgettable read. Existentialism at its most hardcore" - www.uvray.moonfruit.com