Pure Death Chain

You have far too long searched for a way to finally give in to the sweet embrace of death without any luck. Although you have not been able to allow yourself that gift, you have learnt to give others relief from the living world. 

Your rage has become fueled by your never ending desire to embrace the kiss of death. Your rage now lasts for two minutes and only ends when the duration expires. When you hit a creature with an attack while raging, you may establish a tether with the creature for one minute. While tethered, you both may share in the exquisite gift of pain and suffering together. A hostile creature that is tethered treats all damage you deal as if they were vulnerable to it regardless of any resistances or immunities they have. While you are tethered to a creature, you are vulnerable to all damage. Whenever one creature takes damage that is tethered, the opposing creature loses hit points equal to the damage dealt. The first time you take damage after tethering a creature you may choose to drop your hit points to 0 counting the excess hp as damage of any type to yourself. If one party dies while tethered, the corresponding party is also killed. You cannot attack yourself while tethered.