Shackles of the Grave

Requires Pact of the Chain Warlock.
Allows the familiar from the spell "Find Familiar" to also take on the form of a Zombie. In order to take on this form, a sufficient humanoid corpse must be used in the Find Familiar ritual (sufficient meaning it is not severely mutilated or the corpse of an undead humanoid).

If a Pact Boon or Warlock nonspell ability would affect you, it affects your familiar in the same way.