How can you create a combo with Time Sieve, Myr Battlesphere, Teleportation Circle, Oko, Thief of Crowns?
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[START OF COMBO]This combo can be formed with Time Sieve, Myr Battlesphere, Teleportation Circle, Oko, Thief of Crowns

Color identity: GWUB
Mana cost: 
Steps:
  1. Activate Oko's first loyalty ability by putting two loyalty counters on it, creating a Food artifact token.
  2. At the beginning of your end step, Teleportation Circle triggers, blinking Myr Battlesphere.
  3. When Myr Battlesphere enters the battlefield, its first ability triggers, creating four 1/1 Myr artifact creature tokens.
  4. Activate Time Sieve by tapping it and sacrificing the Myrs and Food, causing you to take an extra turn after this one.
  5. Repeat each turn.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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