How can you create a combo with Teferi, Mage of Zhalfir, Omen Machine?
user
[START OF COMBO]This combo can be formed with Teferi, Mage of Zhalfir, Omen Machine

Color identity: U
Mana cost: 
Steps:
  1. Players cannot draw cards due to Omen Machine.
  2. At the beginning of each player's draw step, Omen Machnie triggers, exiling the top card of that player's library and allowing them to cast it, if able.
  3. Teferi only allows opponent to cast spells at sorcery speed, thus forbidding them from playing the card exiled by Omen Machine, unless it is a land card.[END OF COMBO STEPS]

Result:
  - Opponents can only play lands exiled by Omen Machine
  - Players cannot draw cards[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
assistant