How can you create a combo with Safana, Calimport Cutthroat, Time Sieve, Doubling Season?
user
[START OF COMBO]This combo can be formed with Safana, Calimport Cutthroat, Time Sieve, Doubling Season

Color identity: BGU
Mana cost: 
Steps:
  1. At the beginning of your end step, Safana triggers, creating six Treasure tokens.
  2. Activate Time Sieve by tapping it and sacrificing five Treasure tokens, causing you to take an extra turn after this one.
  3. 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 have the initiative.
  - You have completed a dungeon.
[END OF COMBO PREREQUISITES]
assistant