TFT Idea For Next Added Champion

Sion seems like he could fit in on the current setup. He could have a 1 unit synergy where he comes back to life with decaying health when he dies (like his passive in league). It would work well for a frontline since you could give him redemption. His spell could be his q or something, but I really like the idea of his passive with redemption. I don't know much of his lore so idk if he could could be added to knight or brawler or something also.