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Rex, Cyber-Hound + Omen Hawker + Horseshoe Crab

W manaU mana
Rex, Cyber-Hound
Rex, Cyber-Hound
Omen Hawker
Omen Hawker
Horseshoe Crab
Horseshoe Crab
Infinite colorless mana that can only be spent to activate abilities

How it works

  1. Activate Rex using Omen Hawker's ability by tapping it, adding CU mana that can only be spent to activate abilities.
  2. Activate Rex using Horseshoe Crab's ability by paying U mana, untapping it.
  3. Repeat.
Legal in:CommanderLegacyOathbreakerVintage
635 decks$0.77