You cannot resurrect yourself
50 meters in radius, in any direction inclusing above or below. It has to happen within 5 minutes of their brain dying. If resurrected, all injuries that they got when they died is reversed.
Billionaire as measured in US Dollars at the moment you use the ability
100 years added their lifespan does noy make them immune to homicide or accidenys.
You can use this unlimited amount of times.
If no billionaire exists at the tine you try to use this power, then you cannot use the power.
Edit: Lol not sure why people downvoted. I guess everyone just hate moral philosophers… 🤣
What if the cause is a chronic disease or just old age?
Might be funny to get within 50 meters of an execution and bring the person back.
Could probably use this to start a cult.
Worst case is get caught by a billionare who starts mass killing people for me to heal to maximize the odds his life is extended.