How can you create a combo with Aminatou, the Fateshifter, Spark Double, Rings of Brighthearth, Teferi, Temporal Archmage?
user
[START OF COMBO]This combo can be formed with Aminatou, the Fateshifter, Spark Double, Rings of Brighthearth, Teferi, Temporal Archmage

Color identity: WUB
Mana cost: 
Steps:
  1. Activate up to four permanents by tapping them, adding at least {2}.
  2. Activate Aminatou's second loyalty ability by removing a loyalty counter from it, targeting Teferi.
  3. Rings of Brighthearth triggers, causing you to pay {2} to copy Aminatou's ability, targeting Spark Double.
  4. Resolve both Aminatou abilities, blinking Teferi and Spark Double, choosing to have Spark Double enter the battlefield as a copy of Aminatou.
  5. Activate Teferi's second loyalty ability by removing a loyalty counter from it, targeting up to four permanents.
  6. Rings of Brighthearth triggers, choose not to pay for the trigger.
  7. Resolve the Teferi ability, untapping up to four permanents you control.
  8. Activate up to four permanents by tapping them, adding at least {2}.
  9. Activate Spark Double's second loyalty ability by removing a loyalty counter from it, targeting Teferi.
  10. Rings of Brighthearth triggers, causing you to pay {2} to copy Spark Double's ability, targeting Aminatou.
  11. Resolve both Spark Double abilities, blinking Teferi and Aminatou.
  12. Activate Teferi's second loyalty ability by removing a loyalty counter from it, targeting up to four permanents.
  13. Rings of Brighthearth triggers, choose not to pay for the trigger.
  14. Resolve the Teferi ability, untapping up to four permanents you control.
  15. Repeat.
  16. If the four permanents can produce at least {3}, you may instead use Teferi's first loyalty ability once you have infinite mana to put your library into your hand, or you may instead blink any other desired permanent.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
  - You control up to four permanents that can tap to produce at least {2}.
  - Aminatou has at least two loyalty counters.
[END OF COMBO PREREQUISITES]
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