How can you create a combo with Time Sieve, Myr Battlesphere, Sword of Light and Shadow?
user
[START OF COMBO]This combo can be formed with Time Sieve, Myr Battlesphere, Sword of Light and Shadow

Color identity: UB
Mana cost: {7} each turn
Steps:
  1. Deal combat damage to an opponent using the creature that has Sword of Light and Shadow attached.
  2. Sword of Light and Shadow triggers, causing you to gain three life and return Myr Battlesphere from your graveyard to your hand.
  3. Cast Myr Battlesphere by paying {7}.
  4. When Myr Battlesphere enters the battlefield, it triggers, creating four 1/1 Myr creature tokens.
  5. Activate Time Sieve by tapping it, sacrificing Myr Battlesphere and sacrificing the four Myr tokens, causing you to take an 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:
  - Time Sieve must be on the battlefield
  - Myr Battlesphere must be in the graveyard
  - Sword of Light and Shadow must be on the battlefield
  - Sword of Light and Shadow attached to a creature you control that does not have summoning sickness and that cannot be blocked by an opponent.
[END OF COMBO PREREQUISITES]
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