Board Thread:Off Topic/@comment-24993958-20151027072937/@comment-25396609-20151111054525

The Vacuum semblance is a bit of a weird case for power balancing. When you use it the oxygen is not destroy and it does not cease to exist, it is merely displaced, a person constantly moving would be at no risk as the vacuum would have to follow them. The only time it would present a sizable chance of fatality is on someone who is already disabled or sleeping and thus unable to remove themself from the vacuum.