How can you create a combo with Time Sieve, Encroaching Mycosynth, Rionya, Fire Dancer, Abhorrent Overlord?
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[START OF COMBO]This combo can be formed with Time Sieve, Encroaching Mycosynth, Rionya, Fire Dancer, Abhorrent Overlord

Color identity: UBR
Mana cost: 
Steps:
  1. At the beginning of your combat phase, Rionya triggers, creating at least one token copy of Abhorrent Overlord with haste.
  2. When the Abhorrent Overlord token enters the battlefield, it triggers, creating at least four 1/1 Harpy creature tokens.
  3. Activate Time Sieve by tapping it, sacrificing the Abhorrent Overlord token and the Harpy tokens, causing you to take an extra turn after this one.
  4. 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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