How can you create a combo with Blood Funnel, Corpse Dance, Witch Engine?
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[START OF COMBO]This combo can be formed with Blood Funnel, Corpse Dance, Witch Engine

Color identity: B
Mana cost: {2}{B}
Steps:
  1. Activate Witch Engine by tapping it.
  2. Holding priority, cast Corpse Dance with buyback by paying {2}{B} due to Blood Funnel.
  3. Blood Funnel triggers, causing you to sacrifice Witch Engine.
  4. Resolve Corpse Dance, returning Witch Engine from your graveyard to the battlefield, giving it haste, and returning Corpse Dance to your hand.
  5. Resolve the Witch Engine ability from step 1, adding {B}{B}{B}{B} and failing to give an opponent control of Witch Engine as it is a new object.
  6. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite black mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Blood Funnel must be on the battlefield
  - Corpse Dance must be in your hand
  - Witch Engine must be on the battlefield
  - Witch Engine does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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