Who knows a lot about the angel of death?

I’ve been really interested in the 10 Egyptian plagues in the book of exodus and I wanna learn more about the angel of death. So far all I know is that the angel that took the lives of the first borns is a nameless angel and that it’s typically depicted wielding a sword. I don’t have a bible to study so I thought I’d ask people that have bibles and that will probably put more time and effort into looking into this.