the front side of Mikaeus, the Unhallowed
the back of a classic MtG card
the front side of Crystalline Crawler
the back of a classic MtG card
the front side of Carrion Feeder
the back of a classic MtG card

Color Identity: B

Initial Card State

  1.  All permanents on the battlefield.

Steps

  1. If Crystalline Crawler has a +1/+1 counter on it, activate its first ability by removing a +1/+1 counter from it, adding one mana of any color.
  2. Repeat step 1 until Crystalline Crawler has no +1/+1 counters on it.
  3. Activate Carrion Feeder by sacrificing Crystalline Crawler.
  4. Crystalline Crawler dies, triggering its undying ability, returning it to the battlefield with a +1/+1 counter on it.
  5. Resolve the Carrion Feeder ability, putting a +1/+1 counter on it.
  6. Repeat.

Results

  1. Infinite colored mana.
  2. Infinite death triggers.
  3. Infinite ETB.
  4. Infinite LTB.
  5. Infinite sacrifice triggers.
  6. Infinite +1/+1 counters on a creature.

Metadata

  1. In 181 decks according to EDHREC.
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