Hardcore mode, as seen from other games, inherits all the properties you would expect, including being able to only create a single character per account, which gets a single life. As soon as you die, you're out.
To add to the challenge, you will be unable to trade with other players by any means. In the harsh world of Hardcore, you're by yourself and yourself alone.
Fear not however, as your character can be ported to a non-hardcore state if you wish to do so after its (eventual) demise.
I agree to follow NovaRO's rules and understand that RMT (Real Money Trading) is a bannable offense which will result in account termination.