Color Identity: U

Prerequisites

  1.  
    Mirrormade
    Mirrormade     in hand.
  2.  
    Second Chance
    Second Chance     and
    Estrid's Invocation
    Estrid's Invocation     on the battlefield.
  3. mana to cast it.
  4. 5 or less life.

Steps

  1. On upkeep,
    Estrid's Invocation
    Estrid's Invocation     and
    Second Chance
    Second Chance     both trigger; resolve them in that order.
  2. Flicker
    Estrid's Invocation
    Estrid's Invocation    ; copy
    Second Chance
    Second Chance    .
  3. (Invocation
    Second Chance
    Second Chance     ETBs after beginning of upkeep and does not have an extra turn trigger this turn).
  4. Resolve the original
    Second Chance
    Second Chance     trigger; sacrifice it and take an extra turn.
  5. During your main phase, cast
    Mirrormade
    Mirrormade     as a copy of Invocation
    Second Chance
    Second Chance    , including
    Estrid's Invocation
    Estrid's Invocation    's upkeep trigger of
    Estrid's Invocation
    Estrid's Invocation    .
  6. Move to your extra turn.
  7. On upkeep, Invocation
    Second Chance
    Second Chance     and Mirror
    Second Chance
    Second Chance     both have the "flicker" trigger of
    Estrid's Invocation
    Estrid's Invocation     and the
    Second Chance
    Second Chance     extra turn trigger.
  8. Order the triggers to resolve in that order.
  9. Flicker Invocation, copying Mirror
    Second Chance
    Second Chance    , then flicker Mirror, copying Invocation
    Second Chance
    Second Chance    .
  10. Resolve the extra turns triggers, sacrificing no permanents as both Invocation and Mirror are new objects.
  11. Repeat for infinite turns.

Results

  1. Infinite turns.

Metadata

  1. In 69 decks according to EDHREC.
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