Color Identity: W, U

Prerequisites

  1.  
    Intruder Alarm
    Intruder Alarm     on the battlefield.
  2.  
    Stonecloaker
    Stonecloaker     in hand.
  3. Creatures you control can tap to produce at least ({2} magic symbol)  ({U} magic symbol)  .

Steps

  1. Activate all mana-producing creatures you control by tapping them, adding at least ({2} magic symbol)  ({U} magic symbol)  .
  2. Cast
    Stonecloaker
    Stonecloaker     by paying ({2} magic symbol)  ({U} magic symbol)  .
  3. Stonecloaker
    Stonecloaker     enters the battlefield, triggering
    Intruder Alarm
    Intruder Alarm     and
    Stonecloaker
    Stonecloaker    .
  4. Resolve the
    Intruder Alarm
    Intruder Alarm    's trigger, untapping all creatures you control.
  5. Resolve the
    Stonecloaker
    Stonecloaker    's trigger, returning it to your hand.
  6. Repeat.

Results

  1. Infinite ETB.
  2. Infinite LTB.
  3. Infinite mana creatures you control can produce.
  4. Infinite storm count.
  5. Infinite untap of all creatures.

Metadata

  1. In 187 decks according to EDHREC.
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