the front side of Halo Fountain
the back of a classic MtG card
the front side of Clever Conjurer
the back of a classic MtG card
the front side of Phyrexian Altar
the back of a classic MtG card

Color Identity: W, U

Initial Card State

  1.  All permanents on the battlefield.

Notable Prerequisites

  1. Clever Conjurer does not have summoning sickness.

Mana Needed

  1. one white mana available.

Steps

  1. Activate Clever Conjurer by tapping it, targeting Halo Fountain.
  2. Holding priority, activate Halo Fountain's first ability by paying one white mana, tapping it and untapping Clever Conjurer, creating a 1/1 Citizen creature token.
  3. Resolve the Clever Conjurer ability, untapping Halo Fountain.
  4. Activate Phyrexian Altar by sacrificing the Citizen token, adding one white 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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