How can you create a combo with Whirler Virtuoso, Decoction Module, Astral Dragon?
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[START OF COMBO]This combo can be formed with Whirler Virtuoso, Decoction Module, Astral Dragon

Color identity: UR
Mana cost: {6}{U}{U}
Steps:
  1. Cast Astral Dragon by paying {6}{U}{U}.
  2. When Astral Dragon enters the battlefield, it and Decoction Module trigger.
  3. Resolve the Decoction Module trigger, causing you to get {E}.
  4. Resolve the Astral Dragon trigger, causing you to create two token copies of Decoction Module that are 3/3 Dragons in addition to their other types.
  5. When the Decoction Module tokens enter the battlefield, each Decoction Module triggers twice, causing you to get six {E}.
  6. Activate Whirler Virtuoso by paying {E}{E}{E}, creating a 1/1 Thopter artifact creature token.
  7. When the Thopter enters the battlefield, each Decoction Module triggers, causing you to get {E}{E}{E}.
  8. Repeat from step 6.[END OF COMBO STEPS]

Result:
  - Infinite creature tokens
  - Infinite enters the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Whirler Virtuoso must be on the battlefield
  - Decoction Module must be on the battlefield
  - Astral Dragon must be in your hand
[END OF COMBO PREREQUISITES]
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