Color Identity: U, B, R

Prerequisites

  1.  
    Mairsil, the Pretender
    Mairsil
    on the battlefield.
  2.  All other cards in exile.
  3. Mairsil, the Pretender
    Mairsil
    does not have a +1/+1 counter on it.
  4. ({B} magic symbol)   available.

Steps

  1. Activate
    Mairsil, the Pretender
    Mairsil
    using
    Endling
    Endling
    's third ability by paying ({B} magic symbol)  , giving
    Mairsil, the Pretender
    Mairsil
    undying until end of turn.
  2. Activate
    Mairsil, the Pretender
    Mairsil
    using
    Blood Vassal
    Blood Vassal
    's ability by sacrificing it, adding ({B} magic symbol)  ({B} magic symbol)  .
  3. Mairsil, the Pretender
    Mairsil
    dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  4. Activate
    Mairsil, the Pretender
    Mairsil
    using
    Cryptic Trilobite
    Cryptic Trilobite
    's first ability by removing a +1/+1 counter from it, adding ({C} magic symbol)  ({C} magic symbol)   that can only be spent to activate abilities.
  5. Repeat.

Results

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

Metadata

  1. In 3 decks according to EDHREC.
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