How can you create a combo with Dual Nature, Sylvan Hierophant, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Dual Nature, Sylvan Hierophant, Phyrexian Altar

Color identity: G
Mana cost: {1}{G}
Steps:
  1. Cast Sylvan Hierophant by paying {1}{G}.
  2. Dual Nature's first ability triggers, creating a token copy of Sylvan Hierophant.
  3. Sacrifice the nontoken Sylvan Hierophant to Phyrexian Altar, adding {G}.
  4. Dual Nature's second ability triggers, and Sylvan Hierophant triggers targeting any other creature card in your graveyard.
  5. In response, sacrifice the token Sylvan Hierophant to Phyrexian Altar for {G}.
  6. Dual Nature's second ability triggers, and the Sylvan Hierophant token triggers.
  7. Resolve the Sylvan Hierophant token's trigger, returning the nontoken Sylvan Hierophant to your hand.
  8. Resolve both Dual Nature abilities, exiling zero creauters.
  9. Resolve the nontoken Sylvan Hierophant's trigger, returning a creature card from your graveyard to your hand.
  10. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite storm count
  - Return all creatures from your graveyard to your hand[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Dual Nature must be on the battlefield
  - Sylvan Hierophant must be in your hand
  - Phyrexian Altar must be on the battlefield
[END OF COMBO PREREQUISITES]
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