the front side of Grenzo, Dungeon Warden
the back of a classic MtG card
the front side of Murderous Rider // Swift End
the back of a classic MtG card
the front side of Ashnod's Altar
the back of a classic MtG card

Color Identity: B, R

Initial Card State

  1.  All cards on the battlefield.

Steps

  1. Activate Ashnod's Altar by sacrificing Murderous Rider, adding one colorless manaone colorless mana.
  2. Murderous Rider dies, putting itself from your graveyard onto the bottom of your library.
  3. Activate Grenzo by paying two generic mana, putting Murderous Rider into your graveyard from the bottom of your library, then putting Murderous Rider from your graveyard onto the battlefield.
  4. Repeat.

Results

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