He had groused about helium to Klipwing once, who had enquired as to what Handy referred to. Handy had explained it was a noble gas humans had discovered that operated similarly to helemnite but had the added benefit of not being toxic. It was, however, extraordinarily rare and an absolute whore to get a hold of. However, ease of use aside, helemnite gas, like helium, was also non-flammable. Thus he’d never really needed to be concerned about the floating gas bag over his head catching fire at any point when he flew. So there was that, at least.