the front side of Reins of Power
the back of a classic MtG card
the front side of Echo Mage
the back of a classic MtG card

Color Identity: U

Initial Card State

  1.  Reins of Power in hand.
  2.  Echo Mage on the battlefield.

Notable Prerequisites

  1. Creatures you control can tap to produce at least ({U} magic symbol)  ({U} magic symbol)  .
  2. Echo Mage has at least four level counters on it.

Mana Needed

  1. ({2} magic symbol)  ({U} magic symbol)  ({U} magic symbol)   available.

Steps

  1. Cast Reins of Power by paying ({2} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  .
  2. Holding priority, activate all mana-producing creatures you control by tapping them, adding at least ({U} magic symbol)  ({U} magic symbol)  .
  3. Activate Echo Mage by paying ({U} magic symbol)  ({U} magic symbol)   and tapping it, copying Reins of Power twice.
  4. Resolve the first copy of Reins of Power, untapping all creatures you and target opponent control, and exchanging control of those creatures.
  5. Resolve the second copy of Reins of Power, untapping all creatures you and target opponent control, and exchanging control of those creatures, causing you to regain control of all the creatures you originally controlled.
  6. Repeat from step 2.
  7. If creatures you control can tap to produce at least ({1} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  , this combo nets infinite mana.

Results

  1. Infinite magecraft triggers.
  2. Infinite mana creatures you control can produce.
  3. Infinite mana creatures you control can produce for target opponent.
  4. Infinite untap of creatures you control.

Metadata

  1. In 68 decks according to EDHREC.
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