How can you create a combo with Tainted Observer, Animation Module, Crystalline Crawler, Branching Evolution, Tekuthal, Inquiry Dominus?
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[START OF COMBO]This combo can be formed with Tainted Observer, Animation Module, Crystalline Crawler, Branching Evolution, Tekuthal, Inquiry Dominus

Color identity: GU
Mana cost: {3}
Steps:
  1. Put a +1/+1 counter on a creature you control.
  2. Animation Module triggers, causing you to pay {1} to create a 1/1 Servo artifact creature token.
  3. The Servo enters the battlefield, triggering Tainted Observer, causing you to pay {2} to put four +1/+1 counters on Crystalline Crawler.
  4. Animation Module triggers four times.
  5. Resolve the first three Animation Module triggers, choosing not to pay.
  6. Activate Crystalline Crawler's first ability three times by removing three +1/+1 counters from it, adding {3}.
  7. Resolve the final Animation Module trigger, causing you to pay {1} to create a 1/1 Servo artifact creature token.
  8. Repeat from step 3.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Crystalline Crawler
  - Infinite colored mana
  - Infinite creature tokens
  - Infinite enters the battlefield
  - Infinite proliferate[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Crystalline Crawler has at least one +1/+1 counter.
  - You have a way to put a +1/+1 counter on a creature you control.
[END OF COMBO PREREQUISITES]
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