Color Identity: W, U

Prerequisites

  1.  All permanents on the battlefield.
  2. Corridor Monitor
    Corridor Monitor     does not have a -1/-1 counter on it.

Steps

  1. Activate
    Cauldron of Souls
    Cauldron of Souls     by tapping it, giving
    Corridor Monitor
    Corridor Monitor     persist until end of turn.
  2. Activate
    Ashnod's Altar
    Ashnod's Altar     by sacrificing
    Corridor Monitor
    Corridor Monitor    , adding ({C} magic symbol)  ({C} magic symbol)  .
  3. When
    Corridor Monitor
    Corridor Monitor     dies, its persist ability triggers, returning itself from your graveyard to the battlefield with a -1/-1 counter on it.
  4. When
    Corridor Monitor
    Corridor Monitor     enters the battlefield, it and
    Cathars' Crusade
    Cathars' Crusade     trigger.
  5. Resolve the
    Corridor Monitor
    Corridor Monitor     trigger, untapping
    Cauldron of Souls
    Cauldron of Souls    .
  6. Resolve the
    Cathars' Crusade
    Cathars' Crusade     trigger, putting a +1/+1 counter on each creature you control.
  7. Repeat.

Results

  1. Infinite colorless mana.
  2. Infinite death triggers.
  3. Infinite ETB.
  4. Infinite LTB.
  5. Infinite sacrifice triggers.
  6. Infinite +1/+1 counters.

Metadata

  1. In 3 decks according to EDHREC.
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