How can you create a combo with Teferi, Temporal Archmage, The Chain Veil?
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[START OF COMBO]This combo can be formed with Teferi, Temporal Archmage, The Chain Veil

Color identity: U
Mana cost: 
Steps:
  1. Activate The Chain Veil by paying {4} and tapping it, allowing all planeswalkers you control to activate their loyalty abilities and additional time this turn.
  2. Activate Teferi's second loyalty ability by removing a loyalty counter from it, untapping the Chain Veil and the three mana-producing permanents.
  3. Repeat from step 1 until Teferi dies due to having zero loyalty.
  4. Cast Teferi from your command zone.
  5. Activate Teferi's first loyalty ability by adding a loyalty counter to it, looking at the top two cards of your library and putting one card from the top of your library into your hand and the other onto the bottom of your library.
  6. Do this x times, where x is equal to one half times the number of times you activated The Chain Veil this turn minus four, rounded down.
  7. Activate Teferi's second loyalty ability, untapping the Chain Veil and the three mana-producing permanents.
  8. Repeat step 7 an additional time.
  9. Activate Teferi's second loyalty ability by untapping the three mana producing permanents and the additional mana producing permanent, adding {4}{U}.
  10. Repeat step 9 until Teferi dies due to having zero loyalty.
  11. Repeat from step 4.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite colored mana
  - Infinite colorless mana
  - Infinite planeswalker activations[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Teferi has at least five loyalty counters on it.
  - You control a combination of up to three permanents on the battlefield with the ability to produce a total of at least {4}.
  - You control an additional permanent that can be tapped to add at least {U}.You have enough mana to recast Teferi from your command zone minus four.
[END OF COMBO PREREQUISITES]
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