Well, I know whatcha mean. The pictures might make you think it is some kind of tribute to the Necronomicon. But it is just fantasy in the way Lord of The Rings is. Here are some typical cards:
But that's what it is - a card game. It establishes no doctrine nor does it ask the player to believe in anything.
To me, it is just a table game. If someone wants to say it's anti-Biblical, it is. But no more than how Monopoly promotes greed, chess is about conquest and death and even Uno is not very Christlike in that it's about beating everyone else.
The money thing is still the only caveat, I would say. I made about 6 custom decks and dumped about $500 into the game. I'm not proud of that. But Christian people all the time dump money into playing golf, buying sport utility vehicles, and eating at fancy restaurants (none of which I do). They should be equally ashamed of that, if they wanna talk stewardship.