the front side of Gyruda, Doom of Depths
the back of a classic MtG card
the front side of Mortuary
the back of a classic MtG card
the front side of Evil Twin
the back of a classic MtG card

Color Identity: U, B

Initial Card State

  1.  Evil Twin in hand.
  2.  Gyruda and Mortuary on the battlefield.

Mana Needed

  1. two generic manaone blue manaone black mana available.

Steps

  1. Cast Evil Twin by paying two generic manaone blue manaone black mana, having it enter the battlefield as a copy of Gyruda.
  2. Put Evil Twin into your graveyard due to the legend rule.
  3. Mortuary triggers, putting Evil Twin on top of your library from your graveyard.
  4. Evil Twin's enter the battlefield ability triggers, causing each player to mill four cards and you to return Evil Twin from your graveyard to the battlefield as a copy of Gyruda.
  5. Repeat from step 2.

Results

  1. Infinite death triggers.
  2. Infinite creature ETB.
  3. Infinite creature LTB.
  4. Infinite mill.
  5. Infinite creature sacrifice triggers.
  6. Infinite self-mill.
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