Color Identity: B

Prerequisites

  1.  All permanents on the battlefield.

Steps

  1. Activate
    Altar of Dementia
    Altar of Dementia
    by sacrificing
    Putrid Goblin
    Putrid Goblin
    .
  2. Putrid Goblin
    Putrid Goblin
    dies, triggering its persist and undying abilities.
  3. Resolve the persist trigger, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  4. Resolve the undying trigger, doing nothing.
  5. Resolve the
    Altar of Dementia
    Altar of Dementia
    ability, causing target player to mill cards equal to
    Putrid Goblin
    Putrid Goblin
    's power.
  6. Activate
    Altar of Dementia
    Altar of Dementia
    by sacrificing
    Putrid Goblin
    Putrid Goblin
    .
  7. Putrid Goblin
    Putrid Goblin
    dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  8. Resolve the
    Altar of Dementia
    Altar of Dementia
    ability, causing target player to mill cards equal to
    Putrid Goblin
    Putrid Goblin
    's power.
  9. Activate
    Altar of Dementia
    Altar of Dementia
    by sacrificing
    Putrid Goblin
    Putrid Goblin
    .
  10. Putrid Goblin
    Putrid Goblin
    dies, triggering its persist ability, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  11. Repeat from step 5.

Results

  1. Infinite +1/+1 counters on
    Altar of Dementia
    Altar of Dementia
    .
  2. Infinite death triggers.
  3. Infinite ETB.
  4. Infinite LTB.
  5. Infinite sacrifice triggers.

Metadata

  1. In 1285 decks according to EDHREC.
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