the front side of Spawning Grounds
the back of a classic MtG card
the front side of Intruder Alarm
the back of a classic MtG card
the front side of Arbor Elf
the back of a classic MtG card

Color Identity: G, U

Initial Card State

  1.  All permanents on the battlefield.

Notable Prerequisites

  1. Spawning Grounds attached to any Forest you control.
  2. Arbor Elf does not have summoning sickness.

Steps

  1. Activate the Forest with Spawning Grounds attached by tapping it, creating a 5/5 Beast creature token.
  2. The Beast enters the battlefield, triggering Intruder Alarm, untapping all creatures.
  3. Activate Arbor Elf by tapping it, untapping the Forest.
  4. Repeat.

Results

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

Metadata

  1. In 4 decks according to EDHREC.
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