There's this thing about lazarus powers in fiction where the whole 'coming back' bit isn't just a neat party trick. It completely rewrites how characters approach danger, loss, and even morality. If you know you can be brought back, what risks are you willing to take that you wouldn't otherwise? On the flip side, if you're the one holding that power, the weight of choosing who gets that second chance and who doesn't... that's a brutal kind of conflict. I'm thinking of a book series where a healer could pull people from the brink, but every time she did it, it cost her a piece of her own memory. Her internal struggle wasn't about whether she could do it, but whether she should, and what of herself she was willing to lose to keep others whole. The supernatural element creates this constant tension between hope and sacrifice, between playing god and facing the consequences of it.
It also messes with grief in a fascinating way. Normally, death is this absolute endpoint for relationships and rivalries. But with a lazarus element in play, a 'death' can just be a pause button. A villain you thought was gone can resurface, reopening old wounds. A lost love might return, but are they the same person? That uncertainty breeds paranoia, distrust, and this lingering dread that no defeat is permanent. It forces characters to find new ways to resolve conflicts that don't rely on the finality of a grave, which often means confronting the root causes of hatred or ambition in a more psychological way. You end up with stories less about winning a battle and more about achieving a lasting peace, which is a much harder, and more interesting, kind of victory.