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Tromell, Seymour's Butler + Gemstone Array + Crab Umbra

U manaG mana
Tromell, Seymour's Butler
Tromell, Seymour's Butler
Gemstone Array
Gemstone Array
Crab Umbra
Crab Umbra
Infinite colored manaInfinite charge counters on a permanentInfinite proliferate

How it works

  1. Activate Tromell by paying 1 and tapping it, causing you to put at least five charge counters on Gemstone Array.
  2. Activate Gemstone Array five times by removing five charge counters from it, adding 4U mana.
  3. Activate Crab Umbra by paying 2U mana, untapping Tromell.
  4. Repeat.
Legal in:CommanderLegacyOathbreakerVintage
0 decks$2.10