i can't really prove it since it happened very few times but i alrdy landed +80k backtab on nobuffed char and he didn't die at all. i even wonder if his hp got rly damaged. and ofc there was no undying will or celestial or smth... talked to a friend and he had the same issue once. so is that some kind of bug or caused by luc stat to avoid deadly attack ? if it's the case, the guy had much luck to avoid 2 times in a row.