How can you create a combo with Time Sieve, Tamiyo's Journal, Academy Manufactor, Helm of the Host?
user
[START OF COMBO]This combo can be formed with Time Sieve, Tamiyo's Journal, Academy Manufactor, Helm of the Host

Color identity: UB
Mana cost: 
Steps:
  1. At the beginning of your combat phase, Helm of the Host triggers, creating a token copy of Academy Manufactor with haste.
  2. Activate Time Sieve by tapping it and sacrificing five artifacts, causing you to take an extra turn after this one.
  3. Move to your next turn.
  4. At the beginning of your upkeep, Tamiyo's Journal triggers, creating three Food, three Clue, and three Treasure artifact tokens.
  5. Repeat from step 2.[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 Academy Manufactor.
  - You control at least five additional artifacts.
[END OF COMBO PREREQUISITES]
assistant