How can you create a combo with Eye of the Storm, Mind's Desire, Mirror of Fate, Echo Storm?
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[START OF COMBO]This combo can be formed with Eye of the Storm, Mind's Desire, Mirror of Fate, Echo Storm

Color identity: U
Mana cost: {4}{U}{U}
Steps:
  1. Cast Mind's Desire for {4}{U}{U}.
  2. Eye of the Storm and Mind's Desire each trigger.
  3. Resolve the Mind's Desire trigger, copying it zero times.
  4. Resolve the Eye of the Storm trigger, exiling Mind's Desire, copying Mind's Desire and Echo Storm, and casting the Echo Storm copy, targeting any artifact, and then the Mind's Desire copy without paying their mana costs.
  5. The Echo Storm copy and the Mind's Desire copy each trigger.
  6. Resolve the Echo Storm copy's trigger, creating an additional Echo Storm copy for each time you have cast your commander from the command zone.
  7. Resolve these additional copies, creating at least one token copy of Mirror of Fate.
  8. Activate any Mirror of Fate by tapping and sacrificing it, exiling all cards from your library and putting Echo Storm and any additional card from exile on top of your library.
  9. Resolve the Mind's Desire copy's trigger from step 5, creating at least one additional copy of Mind's Desire.
  10. Resolve all copies of Mind's Desire, exiling Echo Storm and the additional card from your library and allowing you to cast them this turn.
  11. Resolve the last Echo Storm copy, creating a copy of its target.
  12. Cast Echo Storm from exile without paying its mana cost.
  13. Eye of the Storm and Echo Storm each trigger.
  14. Resolve the Echo Storm trigger, creating an additional Echo Storm copy for each time you have cast your commander from the command zone.
  15. Resolve these additional copies, creating at least one token copy of Mirror of Fate.
  16. Resolve the Eye of the Storm trigger, exiling Echo Storm, copying Mind's Desire and Echo Storm, and casting the Echo Storm copy, targeting any artifact, and then the Mind's Desire copy without paying their mana costs.
  17. Repeat from step 5.
  18. At any time during the loop, you may play any of the additional cards you chose in step 8 and exiled in step 10 from exile without paying their mana costs.[END OF COMBO STEPS]

Result:
  - Cast all spells in your library and exile
  - Infinite copies of artifacts
  - Infinite magecraft triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Eye of the Storm must be on the battlefield
  - Mind's Desire must be in your hand
  - Mirror of Fate must be on the battlefield
  - Echo Storm must be exiled
  - You have cast your commander from the command zone at least once this game.
[END OF COMBO PREREQUISITES]
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