How can you create a combo with Sage of Hours, Spellbinder, Beacon of Immortality, Light of Promise?
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[START OF COMBO]This combo can be formed with Sage of Hours, Spellbinder, Beacon of Immortality, Light of Promise

Color identity: WU
Mana cost: 
Steps:
  1. Deal combat damage to an opponent using the creature that has Spellbinder attached.
  2. Spellbinder triggers, casting a copy of Beacon of Immortality without paying its mana cost.
  3. Resolve the copy of Beacon of Immortality, doubling your life total.
  4. Sage of Hours triggers, putting a number of +1/+1 counters on it equal to the life you gained.
  5. Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one.
  6. Repeat each turn.[END OF COMBO STEPS]

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

Other prerequisites:
  - Sage of Hours must be on the battlefield
  - Spellbinder must be on the battlefield
  - Beacon of Immortality must be exiled
  - Light of Promise must be on the battlefield
  - Light of Promise attached to Sage of Hours.Spellbinder attached to a creature that can attack this turn and that cannot be blocked and killed by an opponent.
  - Your life total is at least 5.
[END OF COMBO PREREQUISITES]
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