It looks like you're new here. If you want to get involved, click one of these buttons!
That's right... this game has cash shop items that increase the chance you have to keep your character after they die.
When you die you become a ghost. At that time you can buy things from the cash shop before using the resurrection stone to improve the chances of your character surviving.
It's right here: http://youtu.be/Rgn8Xa-uT7o?t=1m35s
Personally, I won't be going anywhere near this game.