the front side of Mikaeus, the Unhallowed
the back of a classic MtG card
the front side of Cryptic Trilobite
the back of a classic MtG card
the front side of Heartless Summoning
the back of a classic MtG card

Color Identity: B

Initial Card State

  1.  All permanents on the battlefield.

Steps

  1. Activate Cryptic Trilobite by removing a +1/+1 counter from it, adding ({C} magic symbol)  ({C} magic symbol)   that can only be spent to activate abilities.
  2. Repeat step 1 until Cryptic Trilobite does not have any +1/+1 counters on it.
  3. Cryptic Trilobite dies as a state-based action due to having 0 toughness.
  4. Cryptic Trilobite's undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  5. Repeat.

Results

  1. Infinite colorless mana that can only be spent to activate abilities.
  2. Infinite death triggers.
  3. Infinite ETB.
  4. Infinite LTB.

Metadata

  1. In 70 decks according to EDHREC.
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