How can you create a combo with Timestream Navigator, Helm of the Host?
user
[START OF COMBO]This combo can be formed with Timestream Navigator, Helm of the Host

Color identity: U
Mana cost: {2}{U}{U}
Steps:
  1. Go to combat, Helm of the Host triggers, creating a token copy of Timestream Navigator.
  2. Activate the token copy of Timestream Navigator to take an extra turn.
  3. Move to next turn.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
  - Helm of the Host attached to Timestream Navigator.
  - You have the City's Blessing.
[END OF COMBO PREREQUISITES]
assistant