How can you create a combo with Doubling Season, Jace, Cunning Castaway?
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[START OF COMBO]This combo can be formed with Doubling Season, Jace, Cunning Castaway

Color identity: GU
Mana cost: {1}{U}{U}
Steps:
  1. Cast Jace by paying {1}{U}{U}.
  2. Jace enters the battlefield with six loyalty counters due to Doubling Season.
  3. Activate Jace's third loyalty ability by removing five loyalty counters from it, creating two nonlegendary copies of Jace that enter the battlefield with six loyalty counters each due to Doubling Season.
  4. Repeat step 3 using a Jace token.
  5. Once you have infinite Jace tokens, you may activate their second loyalty abilities by removing two loyalty counters from them, creating infinite 2/2 Illusion creature tokens.[END OF COMBO STEPS]

Result:
  - Infinite creature tokens
  - Infinite enters the battlefield
  - Infinite Jace, Cunning Castaway tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Doubling Season must be on the battlefield
  - Jace, Cunning Castaway must be in your hand
[END OF COMBO PREREQUISITES]
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