the front side of Mairsil, the Pretender
the back of a classic MtG card
the front side of Blood Vassal
the back of a classic MtG card
the front side of Endling
the back of a classic MtG card
the front side of Cryptic Trilobite
the back of a classic MtG card

Color Identity: U, B, R

Initial Card State

  1.  Mairsil on the battlefield.
  2.  All other permanents in exile.

Notable Prerequisites

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

Mana Needed

  1. ({B} magic symbol)   available.

Steps

  1. Activate Mairsil using Endling's third ability by paying ({B} magic symbol)  , giving Mairsil undying until end of turn.
  2. Activate Mairsil using Blood Vassal's ability by sacrificing it, adding ({B} magic symbol)  ({B} magic symbol)  .
  3. Mairsil dies, triggering its undying ability, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  4. Activate Mairsil using 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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