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

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