How can you create a combo with Priest of Gix, Conspiracy Theorist, Dream Halls, Cloudstone Curio, Teferi, Mage of Zhalfir?
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[START OF COMBO]This combo can be formed with Priest of Gix, Conspiracy Theorist, Dream Halls, Cloudstone Curio, Teferi, Mage of Zhalfir

Color identity: UBR
Mana cost: 
Steps:
  1. Cast Priest of Gix by discarding another nonartifact black creature card with mana value two or less.
  2. Conspiracy Theorist triggers, causing you to exile the discarded card from your graveyard and allowing you to cast it this turn.
  3. Priest of Gix enters the battlefield, triggering itself and Cloudstone Curio.
  4. Resolve the Priest of Gix trigger, adding {B}{B}{B}.
  5. Holding priority, cast the black creature from exile by paying its mana cost.
  6. The creature enters the battlefield, triggering Cloudstone Curio, returning Priest of Gix from the battlefield to your hand.
  7. Resolve the Cloudstone Curio trigger from step 3, returning the black creature to your hand.
  8. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Priest of Gix must be in your hand
  - Conspiracy Theorist must be on the battlefield
  - Dream Halls must be on the battlefield
  - Cloudstone Curio must be on the battlefield
  - Teferi, Mage of Zhalfir must be on the battlefield
  - You have a nonartifact black creature card in hand with mana value two or less.
[END OF COMBO PREREQUISITES]
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