the front side of Rootha, Mercurial Artist
the back of a classic MtG card
the front side of Twincast
the back of a classic MtG card

Color Identity: U, R

Initial Card State

  1.  Twincast in hand.
  2.  Rootha on the battlefield.

Mana Needed

  1. two generic manaone blue manaone blue mana available.

Steps

  1. Cast an instant or sorcery spell, or wait for an opponent to cast one.
  2. Holding priority, cast Twincast by paying one blue manaone blue mana, targeting the spell.
  3. Activate Rootha by paying two generic mana and returning it to your hand, copying Twincast, with the copy targeting the original Twincast.
  4. Resolve the copy of Twincast, copying Twincast, targeting the original Twincast.
  5. Repeat step 4.

Results

  1. Infinite magecraft triggers.
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