Color Identity: U

Prerequisites

  1.  
    Retraction Helix
    Retraction Helix     in hand.
  2.  
    Intruder Alarm
    Intruder Alarm     on the battlefield.
  3. You have a creature card in hand.
  4. Creatures you control can tap to produce enough mana to cast the creature card.
  5. You control at least one additional non-mana producing creature that does not have summoning sickness.
  6. ({U} magic symbol)   available.

Steps

  1. Cast
    Retraction Helix
    Retraction Helix     by paying ({U} magic symbol)  , targeting any non-mana producing creature you control that does not have summoning sickness.
  2. Activate all mana-producing creatures you control by tapping them, adding at least ({1} magic symbol)  .
  3. Cast the creature from your hand by paying its mana cost.
  4. When the creature enters the battlefield,
    Intruder Alarm
    Intruder Alarm     triggers, untapping all creatures.
  5. Activate the creature targeted by
    Retraction Helix
    Retraction Helix     by tapping it, returning the creature cast in step 3 to your hand from the battlefield.
  6. Repeat from step 2.

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 322 decks according to EDHREC.
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