How can you create a combo with Skullwinder, Essence Flux, Sedgemoor Witch, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Skullwinder, Essence Flux, Sedgemoor Witch, Phyrexian Altar

Color identity: BGU
Mana cost: {U}
Steps:
  1. Cast Essence Flux by paying {U}.
  2. Sedgemoor Witch triggers, creating a 1/1 Pest creature token.
  3. Resolve Essence Flux, blinking Skullwinder.
  4. Skullwinder enters the battlefield, returning Essence Flux from your graveyard to your hand and causing target opponent to return a card from their graveyard to their hand.
  5. Activate Phyrexian Altar by sacrificing the Pest, adding {U}.
  6. The Pest dies, causing you to gain 1 life.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite lifegain
  - Infinite lifegain triggers
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Skullwinder must be on the battlefield
  - Essence Flux must be in your hand
  - Sedgemoor Witch must be on the battlefield
  - Phyrexian Altar must be on the battlefield
[END OF COMBO PREREQUISITES]
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