Slay the Gods: Is This Even Tarot? Is This Right?

[Slay the Gods + FGO] [Two male leads, bottom protagonist, Wang Mian pairing] Xuan Danran transmigrates into the world of Slay the Gods, where the defective System that scooped him up from the start takes over the Forbidden Ruin [Tarot Cards] he was supposed to awaken. Still, it shouldn't be a big problem... probably? An archangel sitting on the moon: What do you mean, some little Jehovah? I need to stand up and take a look. A great mage who can't tell what's real: What do you mean, a gender-swapped version of me? Interesting. Let me have a look! A group of evil gods locked up in a seal: What do you mean, you're the real me? If the knockoff is stronger than the original, doesn't that make me the knockoff? Anyway, putting all that aside, Xuan Danran thinks this has been a pretty good experience. He'll come back and play again next time. Content warnings: ① The protagonist is massively overpowered. The main strategy is brute force. ② OOC warning. There are personal interpretations and original supernatural incidents. If anything makes you uncomfortable, leave immediately (not really). ③ They're already together from the start. If you can't accept that, run! (Sending love.) ④ Please ignore any timeline issues (looking away).