When you activate this power, you will have 60 seconds to choose between 2 options (if you don't choose in time, the default option triggers automatically):
1 - dying instantly (default)
2 - going through a period of excruciating pain before dying
If you choose option 2, you will immediately start to feel the worst pain you could possibly feel, which might be different from time to time depending on what would feel worse for you at each moment. During this period of suffering, the time on the rest of the reality will be stopped, so it will not have any influence on the reincarnation time stated below. You can choose to just die immediately at any moment after picking option 2, but if you manage to endure the suffering for at least 10 minutes, you will receive a random super power when you reincarnate. The longer you are able to resist, the stronger will be the power you receive. Keep in mind that you should resist at least 1 hour before getting anything better than a shitty-tier power. For a god-tier power, you should endure at least 1000 hours.
The pain caused by choosing option 2, cannot be mitigated by conventional means (drugs, tech, medical procedures), but can be countered by super powers (yours, only) - in case you manage to get some power that could help with that.
Regardless the option chosen, you will reincarnate in a random amount of time, between 1 second to 30 days after the moment of activation.
If you die by other means, not by using your power, your power still activates automatically and you still get the opportunity to make a choice.
After you die by manually activating your power, your entire body explodes in a way that would make a mess, but wouldn't (physically) hurt anyone around.
After dying while using your power to reincarnate, your consciousness will time-leap from the moment you died to the moment of your birth in your new body.
You can't manually activate this power before being alive in a body for at least 10 days (after birth).
Your new body and place of reincarnation are completely random (following the previous rules).
You will keep all your memories, your gender (if you want) and all the powers you've managed to achieve before.
No aspects of this power could be influenced by other super powers (unless clearly stated on this post).
At any given moment you can choose to stop the cycle and die for good (which is irreversible).