How can you create a combo with Approach of the Second Sun, Sunbird's Invocation, God-Eternal Kefnet, Leashling?
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[START OF COMBO]This combo can be formed with Approach of the Second Sun, Sunbird's Invocation, God-Eternal Kefnet, Leashling

Color identity: URW
Mana cost: {4}{W}
Steps:
  1. Move to your draw step, drawing Approach of the Second Sun and revealing it due to God-Eternal Kefnet's ability.
  2. Resolve God-Eternal Kefnet's trigger, copying Approach of the Second Sun and casting the copy from your hand by paying {4}{W}.
  3. Sunbird's Invocation triggers.
  4. In response, activate Leashling by putting Approach of the Second Sun on top of your library, returning Leashling to its owner's hand.
  5. Resolve the Sunbird's Invocation trigger, revealing the top seven cards of your library, casting Approach of the Second Sun without paying its mana cost, then putting the rest of the revealed cards on the bottom of your library.
  6. Resolve Approach of the Second Sun, putting it back into your library seventh from the top and gaining you 7 life.
  7. Resolve the remaining copy of Approach of the Second Sun.[END OF COMBO STEPS]

Result:
  - Win the game[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Approach of the Second Sun must be in the library
  - Sunbird's Invocation must be on the battlefield
  - God-Eternal Kefnet must be on the battlefield
  - Leashling must be on the battlefield
[END OF COMBO PREREQUISITES]
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