How can you create a combo with God-Eternal Kefnet, Scroll Rack, Expropriate?
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[START OF COMBO]This combo can be formed with God-Eternal Kefnet, Scroll Rack, Expropriate

Color identity: U
Mana cost: {6}{U}{U} each turn
Steps:
  1. Tap Scroll Rack and pay {1} to activate it, putting Expropriate on top of your library.
  2. Pass the turn.
  3. On your next draw step, when you draw Expropriate, reveal it due to Kefnet's ability, making a copy that costs {2} less to cast.
  4. Cast the copy for {5}{U}{U}, granting you an extra turn.[END OF COMBO STEPS]

Result:
  - Infinite turns[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - God-Eternal Kefnet must be on the battlefield
  - Scroll Rack must be on the battlefield
  - Expropriate must be in your hand
[END OF COMBO PREREQUISITES]
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