How can you create a combo with Molten Echoes, Cloudstone Curio, Burning-Tree Emissary?
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[START OF COMBO]This combo can be formed with Molten Echoes, Cloudstone Curio, Burning-Tree Emissary

Color identity: RG
Mana cost: {R/G}{R/G}
Steps:
  1. Cast Burning-Tree Emissary by paying {R/G}{R/G}.
  2. Burning-Tree Emissary enters the battlefield, triggering itself, Cloudstone Curio and Molten Echoes.
  3. Resolve the Burning-Tree Emissary trigger, adding {R}{G}.
  4. Resolve the Cloudstone Curio trigger, choosing to return nothing from the battlefield to your hand.
  5. Resolve the Molten Echoes trigger, creating a token copy of Burning-Tree Emissary with haste.
  6. The Burning-Tree Emissary token enters the battlefield, triggering itself and Cloudstone Curio.
  7. Resolve the Burning-Tree Emissary trigger, adding {R}{G}.
  8. Resolve the Cloudstone Curio trigger, returning the nontoken Burning-Tree Emissary from the battlefield to your hand.
  9. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite creature tokens with haste
  - Infinite enters the battlefield
  - Infinite green mana
  - Infinite leaves the battlefield
  - Infinite red mana
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Molten Echoes must be on the battlefield
  - Cloudstone Curio must be on the battlefield
  - Burning-Tree Emissary must be in your hand
  - "Human" or "Shaman" chosen with Molten Echoes.
[END OF COMBO PREREQUISITES]
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