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Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Intruder Alarm + Cavern Harpy

W manaU manaB mana
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight (back)
Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
Intruder Alarm
Intruder Alarm
Cavern Harpy
Cavern Harpy
Infinite creature LTBInfinite creature ETBInfinite storm countInfinite mana creatures you control can produceInfinite untap of creatures

How it works

  1. Cast Cavern Harpy by paying its mana cost reduced by the number of creatures you can tap while casting it.
  2. When Cavern Harpy enters, it and Intruder Alarm trigger.
  3. Resolve the Cavern Harpy trigger, returning it from the battlefield to your hand.
  4. Resolve the Intruder Alarm trigger, untapping all creatures.
  5. Repeat.
Legal in:CommanderLegacyOathbreakerVintage
0 decks$8.28