- 5,241
- 4,121
Oxygen is a Typical Requirement of Life, and so is food. These characters would die without Oxygen or Food so they clearly don't qualify. And if it's via a suit/tank then it still does not qualify as it is not infinite.Self-Sustenance is the ability to maintain oneself infinitely without the typical requirements of life.
Plus the term Self-Sustenance is pretty clear, it is to sustain oneself, through oneself.