the front side of The Prydwen, Steel Flagship
the back of a classic MtG card
the front side of Nim Deathmantle
the back of a classic MtG card
the front side of Ashnod's Altar
the back of a classic MtG card

Color Identity: W

Initial Card State

  1.  All permanents on the battlefield.

Notable Prerequisites

  1. You control at least one other nontoken artifact creature.

Steps

  1. Activate Ashnod's Altar by sacrificing another nontoken artifact creature, adding one colorless manaone colorless mana.
  2. When the artifact creature dies, Nim Deathmantle triggers, causing you to pay four generic mana to return the artifact creature from your graveyard to the battlefield, and attach Nim Deathmantle to it.
  3. When the artifact creature enters the battlefield, The Prydwen triggers, creating a 2/2 Human Knight creature token.
  4. Activate Ashnod's Altar by sacrificing the Human Knight, adding one colorless manaone colorless mana.
  5. Repeat.

Results

  1. Infinite death triggers.
  2. Infinite creature ETB.
  3. Infinite creature LTB.
  4. Infinite creature sacrifice triggers.
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