yup i had the same issue with angry face familiar
If you equip it on a low level toon, with less than 100K hp, then as soon as you zone in, the debuff applies and may kill you.
There must be two differents calculations in the game to decide if you are dead or not. One including buff, one not.
So your char turn into a dead but not so dead char : UI locked & can't move (as with a dead character), seen alive by other, non legit target for rez ....
only way i found to solve the issu was to enter a new zone, take my monk, pull a train on the zombie character.
He will aggro and die for real (including the pet), that will solve the HP count issu
took me a while to understand it was that pet
