Use FEIGN and the next attack that hits you within 10 seconds will appear to kill you. Once you are "killed" you can stay dead indefinitely.
You must be dealt at least 1 point of damage in order to feign death. If you are dealt more damage than your current health, you will actually die and feign death will be voided.
Cooldown will last 10 minutes and starts once you use the RECOVER command to stop feigning death.