Killing an undying godclad five times in a row is already hard enough. But it becomes harder because one will get weaker and exhausted as they fight and kill the undying godclad over and over again.
It is entirely possible that the person who wants to kill an undying legend will get tired and be exhausted before they can kill the legendary undying completely. This is something that has happened before.
But if that legendary undying is killed only four times out of five and manages to escape, that legendary undying will slowly recover their spring of life over time and will acquire new extra lives.
So if the legendary undying is given time to recover, they will recover all of the lives they spent to resurrect. One would have to start all over again in order to kill them.
With this kind of ability, one can imagine why many people, including him, are envious of undying godclads.
