Hell's Caretaker + Thornbite Staff

Hell's Caretaker
Thornbite Staff

Requires
Hell's Caretaker must be on the battlefield. Thornbite Staff must be on the battlefield. Thornbite Staff attached to Hell's Caretaker. You control at least one creature. You have at least one creature card in your graveyard. Hell's Caretaker does not have summoning sickness.
Steps
  1. During your upkeep, activate Hell's Caretaker by sacrificing a creature you control.
  2. Thornbite Staff triggers, untapping Hell's Caretaker.
  3. Resolve the Hell's Caretaker's ability, returning any target creature from your graveyard to the battlefield.
  4. Repeat.
Results
Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.