Color Identity: U, B

Prerequisites

  1.  
    Panharmonicon
    Panharmonicon
    on the battlefield.
  2.  
    Great Whale
    Great Whale
    and
    Cavern Harpy
    Cavern Harpy
    in hand.
  3. You control up to seven lands that can tap to produce at least ({2} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  ({B} magic symbol)  .
  4. ({2} magic symbol)   available.

Steps

  1. Activate up to seven lands you control by tapping them, adding at least ({2} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  ({B} magic symbol)  .
  2. Cast
    Great Whale
    Great Whale
    by paying ({5} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  .
  3. Great Whale
    Great Whale
    enters the battlefield, triggering its ability twice.
  4. Resolve the first
    Great Whale
    Great Whale
    trigger, untapping the seven lands.
  5. Activate the seven lands by tapping them, adding at least ({2} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  ({B} magic symbol)  .
  6. Resolve the second
    Great Whale
    Great Whale
    trigger, untapping the seven lands.
  7. Cast
    Cavern Harpy
    Cavern Harpy
    by paying ({U} magic symbol)  ({B} magic symbol)  .
  8. Cavern Harpy
    Cavern Harpy
    enters the battlefield, triggering its ability twice, returning
    Cavern Harpy
    Cavern Harpy
    and
    Great Whale
    Great Whale
    from the battlefield to your hand.
  9. Repeat.

Results

  1. Infinite ETB.
  2. Infinite LTB.
  3. Infinite mana lands you control can produce.
  4. Infinite storm count.

Metadata

  1. In 10 decks according to EDHREC.
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