Color Identity: U, R

Prerequisites

  1.  
    ExpansionExplosion
    Expansion // Explosion     and
    Twincast
    Twincast     in hand.
  2. You have a way to cast an additional instant or sorcery, or an opponent is casting one.
  3. ({U} magic symbol)  ({U} magic symbol)  ({UR} magic symbol)  ({UR} magic symbol)  , plus enough mana to cast the additional spell if needed available.

Steps

  1. Cast any other instant and/or sorcery spell, or wait for an opponent to cast one.
  2. Holding priority, cast
    ExpansionExplosion
    Expansion     by paying ({UR} magic symbol)  ({UR} magic symbol)  , copying the next instant or sorcery spell you cast with mana value four or less.
  3. Cast
    Twincast
    Twincast     by paying ({U} magic symbol)  ({U} magic symbol)  , targeting the instant or sorcery spell cast in step 1.
  4. The delayed trigger from
    ExpansionExplosion
    Expansion     triggers, copying
    Twincast
    Twincast    , with the copy targeting the original
    Twincast
    Twincast    .
  5. Resolve the copy of
    Twincast
    Twincast    , copying
    Twincast
    Twincast    , with the copy targeting the original
    Twincast
    Twincast    .
  6. Repeat step 5.

Results

  1. Infinite magecraft triggers.

Metadata

  1. In 2793 decks according to EDHREC.
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