Help me find this mahwa

Hey, so I forgot a BL name, help me find it. The protagonist is a college student whose side hustle is to scam people by being a shaman, but he doesn't know that he actually has shaman like abilities. So he gains quite the popularity. One day he meets with the male lead. I don't really remember how they met, but one way or another the MC decided to scam him too and became the ml's personal shaman, the ml was a mafia. And slowly the MC sees their past life's through dreams. The ml also has a brother who is 2nd male lead
1. It was a modern day Korean mafia
2. The mc probably had black hair, the Ml definitely had blond hair.
3. ML's brother was a rival
4. The past live was ancient Korea, the ml was a mountain God in past life, and could turn himself into a tiger
5. It was a manhwa
ALSO, the art was *breathtaking*, like you will stare at the page after the BL name of every chap for 5 whole mins kinda art, I used to read it from batoto
Thanks to whoever helps me find this masterpiece