How can you create a combo with Time Sieve, Myr Battlesphere, Planar Bridge, Soldevi Digger?
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[START OF COMBO]This combo can be formed with Time Sieve, Myr Battlesphere, Planar Bridge, Soldevi Digger

Color identity: UB
Mana cost: {10} each turn
Steps:
  1. Activate Planar Bridge by paying {8} and tapping it, causing you to search your library for Myr Battlesphere and put it onto the battlefield.
  2. When Myr Battlesphere enters the battlefield, it triggers, creating four 1/1 Myr artifact creature tokens.
  3. Activate Time Sieve by tapping it, sacrificing Myr Battlesphere and the four Myr tokens, causing you to take an extra turn after this one.
  4. Activate Soldevi Digger by paying {2}, putting Myr Battlesphere on the bottom of your library from your graveyard.
  5. Repeat each turn.[END OF COMBO STEPS]

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

Other prerequisites:
  - Time Sieve must be on the battlefield
  - Myr Battlesphere must be in the library
  - Planar Bridge must be on the battlefield
  - Soldevi Digger must be on the battlefield
[END OF COMBO PREREQUISITES]
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