Color Identity: U, B, R

Initial Card State

  1.  Mairsil and Thousand-Year Elixir on the battlefield.
  2.  All other permanents in exile.

Notable Prerequisites

  1. Mairsil does not have a -1/-1 counter on it.

Steps

  1. Activate Mairsil using Cauldron of Souls' ability by tapping it, giving itself persist until end of turn.
  2. Activate Mairsil using Blood Vassal's ability by sacrificing it, adding ({B} magic symbol)  ({B} magic symbol)  .
  3. When Mairsil dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
  4. Activate Mairsil using Carnifex Demon's ability by paying ({B} magic symbol)   and removing a -1/-1 counter from it, putting a -1/-1 counter on each other creature.
  5. Repeat.

Results

  1. Infinite black mana.
  2. Infinite death triggers.
  3. Infinite ETB.
  4. Infinite LTB.
  5. Infinite sacrifice triggers.

Metadata

  1. In 1 deck according to EDHREC.
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