How can you create a combo with Crystalline Crawler, Evolution Vat?
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[START OF COMBO]This combo can be formed with Crystalline Crawler, Evolution Vat

Color identity: GU
Mana cost: {5}{U}{G}
Steps:
  1. Activate Evolution Vat by paying {3} and tapping it, targeting Crystalline Crawler and putting a +1/+1 counter on it.
  2. Activate Crystalline Crawler by paying {2}{U}{G}, doubling the number of +1/+1 counters on it.
  3. Activate Crystalline Crawler's first ability four times by removing four +1/+1 counters from it, adding {2}{U}{G}.
  4. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Crystalline Crawler
  - Infinite colored mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Crystalline Crawler has at least four +1/+1 counters on it.
[END OF COMBO PREREQUISITES]
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