Death, dying and resurrection

death's door

when you reach 0 hp, you enter death’s door. when you are on death’s door you have to roll a d20 against your constitution stat. if you roll above your constitution you fail the saving throw. if you fail 3 you die. when you are on death's door you can still act like normal, but if you get hit while already on death’s door you have to make another check.

recovering of death’s door

when you get out of death’s door you gain one level of exhaustion and 1hp. to leave death’s door you have to succeed 3 checks or get healed by an ally.