How can you create a combo with Brenard, Ginger Sculptor, Derevi, Empyrial Tactician, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Brenard, Ginger Sculptor, Derevi, Empyrial Tactician, Phyrexian Altar

Color identity: GWU
Mana cost: {1}{G}{W}{U}
Steps:
  1. Activate Derevi by paying {1}{G}{W}{U}, putting it from the command zone onto the battlefield.
  2. When Derevi enters the battlefield, it triggers, untapping a mana-producing permanent.
  3. Activate the mana-producing permanent by tapping it, adding at least {G}, {W} or {U}.
  4. Activate Phyrexian Altar by sacrificing Derevi, adding {G}, {W} or {U}.
  5. Choose not to return Derevi from your graveyard to the command zone.
  6. When Derevi dies, Brenard triggers, exiling Derevi from your graveyard and creating a token copy of it that is a 1/1 Food Golem artifact creature token.
  7. Choose to return Dervi from exile to the command zone.
  8. When the Derevi token enters the battlefield, it triggers, untapping a mana-producing permanent.
  9. Activate the mana-producing permanent by tapping it, adding at least {G}, {W} or {U}.
  10. Activate Phyrexian Altar by sacrificing the Derevi token, adding {G}, {W} or {U}.
  11. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Brenard, Ginger Sculptor must be on the battlefield
  - Derevi, Empyrial Tactician must be in the command zone
  - Phyrexian Altar must be on the battlefield
  - You control a permanent that can tap to produce at least {G}, {W} and/or {U}.
[END OF COMBO PREREQUISITES]
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