[quote=@Legend Begins]
<Snipped quote by Galvanize>

What do you have instead of lungs? And what do you need them to be strong for?
[/quote]

Oxygen is potentially hazardous for me. I am made of metal. And for my lungs, they are pretty much just air sacs that allows me to propel metal shards when I need to attack like that or store other things. Like fire or electricity.