How can you create a combo with Inalla, Archmage Ritualist, Timestream Navigator, Crystal Shard?
user
[START OF COMBO]This combo can be formed with Inalla, Archmage Ritualist, Timestream Navigator, Crystal Shard

Color identity: UBR
Mana cost: {4}{U}{U}{U}{U}
Steps:
  1. Cast Timestream Navigator by paying {1}{U}.
  2. Timestream Navigator enters the battlefield, triggering Inalla; pay {1} to make a token copy of Timestream Navigator with haste.
  3. Activate the token Timestream Navigator by paying {2}{U}{U}, tapping it, and putting it on the bottom of your library, taking an extra turn after this one.
  4. Activate Crystal Shard by paying {U} and tapping it, returning the original Timestream Navigator to your hand.
  5. Repeat each turn.[END OF COMBO STEPS]

Result:
  - Infinite turns[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Inalla, Archmage Ritualist must be on the battlefield or in the command zone
  - Timestream Navigator must be in your hand
  - Crystal Shard must be on the battlefield
  - You have the City's Blessing or have at least eight permanents on the battlefield.
[END OF COMBO PREREQUISITES]
assistant