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Marvin, Murderous Mimic + Gyre Engineer + Horseshoe Crab

U manaG mana
Marvin, Murderous Mimic
Marvin, Murderous Mimic
Gyre Engineer
Gyre Engineer
Horseshoe Crab
Horseshoe Crab
Infinite green mana

How it works

  1. Activate Marvin using Gyre Engineer's ability by tapping it, adding G manaU mana.
  2. Activate Marvin using Horseshoe Crab's ability by paying U mana, untapping it.
  3. Repeat.
Legal in:CommanderLegacyModernOathbreakerVintage
366 decks$3.53