How can you create a combo with Ayara's Oathsworn, Beacon of Tomorrows, Hex Parasite?
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[START OF COMBO]This combo can be formed with Ayara's Oathsworn, Beacon of Tomorrows, Hex Parasite

Color identity: UB
Mana cost: {7}{U}{U}{B/P} 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 Beacon of Tomorrows and putting it into your hand.
  3. Activate Hex Parasite by paying {1}{B/P}, removing a +1/+1 counter from Ayara's Oathsworn and giving Hex Parasite +1/+0 until end of turn.
  4. Cast Beacon of Tomorrows by paying {6}{U}{U}, causing you to take an extra turn after this one, and shuffle Beacon of Tomorrows 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
  - Beacon of Tomorrows must be in the library
  - Hex Parasite must be on the battlefield
  - 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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