the front side of Intruder Alarm
the back of a classic MtG card
the front side of Stonybrook Schoolmaster
the back of a classic MtG card
the front side of Opposition
the back of a classic MtG card

Color Identity: W, U

Initial Card State

  1.  All permanents on the battlefield.

Steps

  1. Activate Opposition by tapping Stonybrook Schoolmaster, targeting Stonybrook Schoolmaster.
  2. Stonybrook Schoolmaster triggers, creating a 1/1 Merfolk Wizard creature token.
  3. The Merfolk Wizard enters the battlefield, triggering Intruder Alarm, untapping all creatures.
  4. Resolve the Opposition ability, tapping Stonybrook Schoolmaster.
  5. Stonybrook Schoolmaster triggers, creating a 1/1 Merfolk Wizard creature token.
  6. The Merfolk Wizard enters the battlefield, triggering Intruder Alarm, untapping all creatures.
  7. Repeat.

Results

  1. Infinite creature tokens.
  2. Infinite ETB.
  3. Infinite mana creatures you control can produce.
  4. Infinite untap of creatures.
  5. Infinite untap of creatures you control.

Metadata

  1. In 474 decks according to EDHREC.
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