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

Color identity: UBRG
Mana cost: 
Steps:
  1. At the beginning of your combat phase, Rionya triggers, creating at least one token copy of Phylath with haste.
  2. Put the Phylath token into your graveyard due to the legend rule.
  3. The Phylath token enters-the-battlefield ability triggers, creating at least five 0/1 Plant creature tokens.
  4. Activate Time Sieve by tapping it and sacrificing the Plant tokens, 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
  - You control at least five basic lands.
[END OF COMBO PREREQUISITES]
assistant