How can you create a combo with Hell's Caretaker, Thornbite Staff?
user
[START OF COMBO]This combo can be formed with Hell's Caretaker, Thornbite Staff

Color identity: B
Mana cost: 
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.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants 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.
[END OF COMBO PREREQUISITES]
assistant