Heroes of G-d?
No, על not אל. :-) We use על after an adjective or a noun to express "super", it's colloquial but frequent.
I thought that would be more than a little odd, but it was the first thing that leapt to mind.
אפשר לומר?: "היא מורה על שלי."???
Sure there are, they just wear camouflage and fire suits.
Ein kvar giborei al ba-olam.