How can you create a combo with Quirion Ranger, Elvish Pioneer, Cloudstone Curio, Llanowar Tribe?
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[START OF COMBO]This combo can be formed with Quirion Ranger, Elvish Pioneer, Cloudstone Curio, Llanowar Tribe

Color identity: G
Mana cost: 
Steps:
  1. Activate Llanowar Tribe by tapping it, adding {G}{G}{G}.
  2. Cast Quirion Ranger by paying {G}.
  3. Quirion Ranger enters the battlefield, triggering Cloudstone Curio, returning Elvish Pioneer from the battlefield to your hand.
  4. Activate Quirion Ranger by returning a basic Forest from the battlefield to your hand, untapping Llanowar Tribe.
  5. Cast Elvish Pioneer by paying {G}.
  6. Elvish Pioneer enters the battlefield, triggering itself and Cloudstone Curio.
  7. Resolve the Elvish Pioneer trigger, putting a basic Forest from your hand onto the battlefield tapped.
  8. Resolve the Cloudstone Curio trigger, returning Quirion Ranger from the battlefield to your hand.
  9. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite enters the battlefield
  - Infinite green mana
  - Infinite landfall triggers
  - Infinite leaves the battlefield
  - Infinite mana creatures you control can produce
  - Infinite storm count
  - Infinite untap of creatures you control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Quirion Ranger must be in your hand
  - Elvish Pioneer must be on the battlefield
  - Cloudstone Curio must be on the battlefield
  - Llanowar Tribe must be on the battlefield
  - You control a basic Forest.
  - Llanowar Tribe does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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