How can you create a combo with Cogwork Assembler, Crystalline Crawler, Doubling Season, Cathars' Crusade?
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[START OF COMBO]This combo can be formed with Cogwork Assembler, Crystalline Crawler, Doubling Season, Cathars' Crusade

Color identity: GW
Mana cost: {7}
Steps:
  1. Activate Cogwork Assembler by paying {7}, creating two token copies of Crystalline Crawler with haste.
  2. Cathars' Crusade triggers twice, putting four +1/+1 counters on each creature you control.
  3. Activate the first activated abilities of any Crystalline Crawlers eight times by removing eight +1/+1 counters from them, adding eight mana of any color.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters
  - Infinite colored mana
  - Infinite copies of artifacts
  - Infinite creature tokens with haste
  - Infinite enters the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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