Boon of the Grave

The target's aging is stopped as though they have died. By binding the target's life with that of an undead, the target begins to resemble the condition of the target - essentially by becoming partially undead. If they are bound to a skeleton they will become gaunt and nearly skeletal - if still mostly human. If they bond to a zombie, their flesh will begin to rot and fester, etc. All of this might seem a bit extreme until the nature of the undead becomes more interesting such as a vampire, wraith or other such powerful undead.

( Half undead-Half your race)