Color Identity: B, R

Prerequisites

  1.  
    Phyrexian Altar
    Phyrexian Altar     on the battlefield.
  2.  
    Living Death
    Living Death     and
    Dualcaster Mage
    Dualcaster Mage     in hand.
  3. ({4} magic symbol)  ({B} magic symbol)  ({B} magic symbol)  ({R} magic symbol)  ({R} magic symbol)   available.

Steps

  1. Cast
    Living Death
    Living Death     by paying ({3} magic symbol)  ({B} magic symbol)  ({B} magic symbol)  , holding priority.
  2. Cast
    Dualcaster Mage
    Dualcaster Mage     by paying ({1} magic symbol)  ({R} magic symbol)  ({R} magic symbol)  .
  3. Dualcaster Mage
    Dualcaster Mage    's ETB ability triggers, targeting
    Living Death
    Living Death    .
  4. Activate
    Phyrexian Altar
    Phyrexian Altar     once for each creature you control by sacrificing that creature, adding one mana of any color each time.
  5. Resolve
    Dualcaster Mage
    Dualcaster Mage    's ability, copying
    Living Death
    Living Death    .
  6. Resolve the
    Living Death
    Living Death     copy, causing each player to exile all creature cards from their graveyard, sacrifice all creatures they control, then put the exiled cards onto the battlefield.
  7. Repeat from step 3.

Results

  1. Infinite blinking.
  2. Infinite colored mana.
  3. Infinite death triggers.
  4. Infinite ETB.
  5. Infinite LTB.
  6. Infinite sacrifice triggers.

Metadata

  1. In 236 decks according to EDHREC.
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