How can you create a combo with Time Sieve, Myr Battlesphere, Soulherder, Panharmonicon?
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[START OF COMBO]This combo can be formed with Time Sieve, Myr Battlesphere, Soulherder, Panharmonicon

Color identity: WUB
Mana cost: 
Steps:
  1. At the beginning of your end step, Soulherder's second ability triggers, blinking Myr Battlesphere.
  2. Myr Battlesphere's first ability triggers twice and Soulherder's first ability triggers.
  3. Resolve the Soulherder trigger, putting a +1/+1 counter on it.
  4. Resolve both Myr Battlesphere triggers, creating eight 1/1 Myr artifact creature tokens.
  5. Activate Time Sieve by tapping it and sacrificing five Myrs, 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:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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