If not Church of Satan (LaVey) or Temple of Set (Michael Aquino), I may be unaware of the one you're talking about. It wouldn't surprise me to learn there are more sects of Satanism than even just these three, he's a popular character. Since I'm unaware of them I will withhold judgement personally in either direction, I don't have enough info to say whether or not they're one of the good ones so I can't confidently speak on that.