Life magic

There are some common truths in this world: All magic comes from a related deity. Humans survived the war against the goddess Mirthe of calamity 100 years ago. The god Zarte of life abandoned humans when she fell. So ever since the war this world no longer has strong healing magic and the power to resurrect the dead is something so mythical that now just exists in legends, some people even think that it never really existed. But I know something more that isn't on any story book: Zarte didn't just abandoned humans, he fell from grace, ended it's godly life himself and became something else. It's easier to understand this when you really think about it: gods power comes form prayers. Nobody has ever stopped to pray to him, even when no more miracles or magic is granted his temples remain. So where all that power go? Why did he did that? As crazy as it sounds, he did it for love, his heart had long settled for Mirthe, as blasphemous as that might sounds to some. And how do I now this? I'm staring at his demonic avatar in this very moment as he's offering me the deal of a lifetime: To be able to use the long lost life magic, for a price.