Review Detail of ScionOfDegeneracy in I Am the God of Games

So everyone who believes in the god of games is a Immortal or what!???, just having that aspect is enough to turn everyone into his believers. Btw, as they are immortal, won't that upset the world balance!?? As, just by deciding to follow him, grants them immortality!?? Won't this upset other gods, knowing their followers are changing their faith!?? With so much benefits, i don't think there would be anyone stupid enough to not follow him!