Railway Brawler + Crystalline Crawler + Meticulous Excavation

Railway Brawler
Crystalline Crawler
Meticulous Excavation

Requires
Railway Brawler must be on the battlefield. Crystalline Crawler must be in hand. Meticulous Excavation must be on the battlefield. Mana needed: 4 available in at least three different colors
Steps
  1. Cast Crystalline Crawler by paying 4, ensuring to spend at least three different colors of mana to cast it, causing Crystalline Crawler to enter the battlefield with at least three +1/+1 counters on it.
  2. When Crystalline Crawler enters the battlefield, Railway Brawler triggers, putting four +1/+1 counters on it.
  3. Activate Crystalline Crawler's first ability by removing all +1/+1 counters from it, adding and the remaining mana in any combination of color(s).
  4. Activate Meticulous Excavation by paying 2, returning Crystalline Crawler to your hand from the battlefield.
  5. Repeat.
Results
Infinite colored mana. Infinite ETB. Infinite LTB. Infinite storm count.

Kudo, King Among Bears
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Creatures
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Runadi, Behemoth Caller
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Vorinclex, Voice of Hunger
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Capricopian
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Voracious Hydra
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Primordial Hydra
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Instants
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Enchantments
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