Incomplete Revival

You have once been partially brought back to life, as a result you gain the following traits:

Undead. You creature type becomes Undead instead of Humanoid.

Life Essence. When a creature with this feat (including yourself) casts a spell or uses an ability that restores hit points to you, you regain that number of hit points even If it normally wouldn't effect an Undead creature, same goes If a effect would have to target a non Undead creature to activate.

Turn Susceptible. You have a Challenge Rating equal to your level for the purposes of effects that turn, destroy or control Undead.

Unageing. Your body is uneffected by the passage of time and you can not die of old age. Whenever you finish a Long Rest your appearance returns to its original state reversing any cosmetic changes, like scars or hair length.