the front side of Second Chance
the back of a classic MtG card
the front side of Mirrormade
the back of a classic MtG card
the front side of Estrid's Invocation
the back of a classic MtG card

Color Identity: U

Initial Card State

  1.  Mirrormade in hand.
  2.  Second Chance and Estrid's Invocation on the battlefield.

Notable Prerequisites

  1. mana to cast it.
  2. 5 or less life.

Steps

  1. On upkeep, Estrid's Invocation and Second Chance both trigger; resolve them in that order.
  2. Flicker Estrid's Invocation; copy Second Chance.
  3. (Invocation Second Chance ETBs after beginning of upkeep and does not have an extra turn trigger this turn).
  4. Resolve the original Second Chance trigger; sacrifice it and take an extra turn.
  5. During your main phase, cast Mirrormade as a copy of Invocation Second Chance, including Estrid's Invocation's upkeep trigger of Estrid's Invocation.
  6. Move to your extra turn.
  7. On upkeep, Invocation Second Chance and Mirror Second Chance both have the "flicker" trigger of Estrid's Invocation and the Second Chance extra turn trigger.
  8. Order the triggers to resolve in that order.
  9. Flicker Invocation, copying Mirror Second Chance, then flicker Mirror, copying Invocation 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 168 decks according to EDHREC.
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