"Torching in general is more - absolute, than the respawning thing you do. I'd give torching good odds even against the nauseating anti-causality in Materia, I don't think the welcoming committee could have been permanently destroyed there no matter who they bothered - not that I'd advise trying it. Your field would be quite safe here, but if you do hope to be properly immortal that's a lot of time for small chances to add up, and Materia isn't Downsideable. It might make sense to consult the admin to see if there's a way to make your field torchable instead of your body."