Global Class Change: Am I, a Priest, Really Going Too Far by Slaying Gods?

Games descend upon reality, and humanity enters an age where everyone can change class. Monsters arrive, and there are countless secret realms, dungeons, and abysses! On the day he changes class, Jiang Chen becomes a Priest. He awakens a god-tier talent: reversing effects and increasing them tenfold. From then on, Priests are no longer support classes. Enemy: "Is that guy really a Priest? Why is his damage so high?" Enemy: "Whatever you do, don’t attack the Priest! He reflects damage. I died from my own attack!" Teammate: "Healer, please give me a buff!" Teammate: "With Jiang Chen here, I can slay a god!" I’m just a Priest. What’s so wrong with slaying a god?