Who is the angel of death?

I'm curious, who exactly is this so-called 'angel of death'? Is it a metaphorical figure used to describe the inevitability of death, or is there a specific individual or entity that holds this title? And if there is, what are their powers and responsibilities? Do they wield a scythe or carry a dark cloak, as is often depicted in popular culture? And most importantly, do they have any connection to the world of cryptocurrency or finance? I'm eager to learn more about this mysterious figure and their potential impact on our financial systems.