How can you create a combo with Teferi, Temporal Archmage, Lithoform Engine?
user
[START OF COMBO]This combo can be formed with Teferi, Temporal Archmage, Lithoform Engine

Color identity: U
Mana cost: 
Steps:
  1. Activate Teferi, Temporal Archmage's second ability by removing a loyalty counter from it.
  2. In resopnse, activate Lithoform Engine's first ability by paying {2} and tapping it, copying Teferi's activated ability.
  3. Let the copied ability resolve, untapping three lands and Lithoform Engine.
  4. Activate those lands by tapping them, adding at least {3}.
  5. Repeat from step 2.
  6. Once you have infinite mana, you may untap any permanents in step 3.[END OF COMBO STEPS]

Result:
  - Infinite mana lands you control can produce
  - Infinite untap of permanents[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least three lands.
[END OF COMBO PREREQUISITES]
assistant