Color Identity: W, U

Prerequisites

  1.  
    Clever Impersonator
    Clever Impersonator
    and
    Copy Enchantment
    Copy Enchantment
    in hand.
  2.  
    Oblivion Ring
    Oblivion Ring
    and
    Sage of Mysteries
    Sage of Mysteries
    on the battlefield.
  3. ({4} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  ({U} magic symbol)   available.

Steps

  1. Cast
    Copy Enchantment
    Copy Enchantment
    by paying ({2} magic symbol)  ({U} magic symbol)  .
  2. Copy Enchantment
    Copy Enchantment
    enters the battlefield, triggering
    Sage of Mysteries
    Sage of Mysteries
    and itself.
  3. Resolve the Altar of Brood trigger, causing each opponent to mill a card.
  4. Resolve the
    Copy Enchantment
    Copy Enchantment
    's trigger, becoming a copy of
    Oblivion Ring
    Oblivion Ring
    and exiling
    Oblivion Ring
    Oblivion Ring
    .
  5. Cast
    Clever Impersonator
    Clever Impersonator
    by paying ({2} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  .
  6. Clever Impersonator
    Clever Impersonator
    enters the battlefield, triggering
    Sage of Mysteries
    Sage of Mysteries
    and itself.
  7. Resolve the Altar of Brood trigger, causing each opponent to mill a card.
  8. Resolve the
    Clever Impersonator
    Clever Impersonator
    's trigger, becoming a copy of
    Copy Enchantment
    Copy Enchantment
    and exiling
    Copy Enchantment
    Copy Enchantment
    .
  9. Copy Enchantment
    Copy Enchantment
    leaves the battlefield, returning
    Oblivion Ring
    Oblivion Ring
    from exile to the battlefield.
  10. Sage of Mysteries
    Sage of Mysteries
    and
    Oblivion Ring
    Oblivion Ring
    triggers.
  11. Resolve the Altar of Brood trigger, causing each opponent to mill a card.
  12. Resolve the
    Oblivion Ring
    Oblivion Ring
    's trigger, exiling
    Clever Impersonator
    Clever Impersonator
    .
  13. Clever Impersonator
    Clever Impersonator
    leaves the battlefield, returning Copy enchantment from exile to the battlefield.
  14. Repeat from step 2.

Results

  1. Infinite ETB.
  2. Infinite LTB.
  3. Infinite mill.

Metadata

  1. In 10 decks according to EDHREC.
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