How can you create a combo with Ayara's Oathsworn, Nexus of Fate, Clockspinning?
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[START OF COMBO]This combo can be formed with Ayara's Oathsworn, Nexus of Fate, Clockspinning

Color identity: UB
Mana cost: {8}{U}{U}{U} each turn
Steps:
  1. Deal combat damage to an opponent using Ayara's Oathsworn.
  2. Ayara's Oathsworn triggers, putting a +1/+1 counter on it and searching your library for Nexus of Fate and putting it into your hand.
  3. Cast Clockspinning with buyback by paying {3}{U}, removing a +1/+1 counter from Ayara's Oathsworn and returning Clockspinning to your hand.
  4. Cast Nexus of Fate by paying {5}{U}{U}, causing you to take an extra turn after this one, and shuffle Nexus of Fate into your library.
  5. Repeat each turn.[END OF COMBO STEPS]

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

Other prerequisites:
  - Ayara's Oathsworn must be on the battlefield
  - Nexus of Fate must be in the library
  - Clockspinning must be in your hand
  - Ayara's Oathsworn does not have summoning sickness and has exactly three +1/+1 counters on it.
  - An opponent cannot block Ayara's Oathsworn.
[END OF COMBO PREREQUISITES]
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