How can you create a combo with Zaxara, the Exemplary, Patchwork Crawler, Morphling?
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[START OF COMBO]This combo can be formed with Zaxara, the Exemplary, Patchwork Crawler, Morphling

Color identity: BGU
Mana cost: 
Steps:
  1. Activate Patchwork Crawler using Zaxara's ability by tapping it, adding {U}{U}.
  2. Activate Patchwork Crawler using Morphling's first ability by paying {U}, untapping Patchwork Crawler.
  3. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Zaxara, the Exemplary must be exiled
  - Patchwork Crawler must be on the battlefield
  - Morphling must be exiled
  - Patchwork Crawler does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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