(Disclaimer: this is adapted from the Necromancer homebrew class as featured in XP to Level 3's video) You have learned how to perfect not only draining life from others, but also how to preserve your own life. After your character drops to zero hit points, you do not start rolling your death rolls, instead, you gain the tag of undead until you kill another creature and steal its life force. while undead your intelligence drops to 11 and you lose the ability to cast spells, however your strength is boosted up to 18 and you gain the ability to use unarmed strikes. As an undead, if you are killed, you are dead permanently. However, if the combat situation you died in ends before you kill someone else, you lose control of yourself and transform into a wight with your stats and equipment. This cannot be reversed.