the front side of Quirion Ranger
the back of a classic MtG card
the front side of Elvish Pioneer
the back of a classic MtG card
the front side of Cloudstone Curio
the back of a classic MtG card
the front side of Llanowar Tribe
the back of a classic MtG card

Color Identity: G

Initial Card State

  1.  Quirion Ranger in hand.
  2.  All other permanents on the battlefield.

Notable Prerequisites

  1. You control a basic Forest.
  2. Llanowar Tribe does not have summoning sickness.

Steps

  1. Activate Llanowar Tribe by tapping it, adding ({G} magic symbol)  ({G} magic symbol)  ({G} magic symbol)  .
  2. Cast Quirion Ranger by paying ({G} magic symbol)  .
  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} magic symbol)  .
  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.

Results

  1. Infinite ETB.
  2. Infinite green mana.
  3. Infinite landfall triggers.
  4. Infinite LTB.
  5. Infinite mana creatures you control can produce.
  6. Infinite storm count.
  7. Infinite untap of creatures you control.

Metadata

  1. In 51 decks according to EDHREC.
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