How can you create a combo with Enduring Renewal, Herald of the Pantheon, Carnival of Souls, Opalescence, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Enduring Renewal, Herald of the Pantheon, Carnival of Souls, Opalescence, Phyrexian Altar

Color identity: WBG
Mana cost: {B}
Steps:
  1. Cast Carnival of Souls by paying {B}.
  2. Herald of the Pantheon triggers, causing you to gain 1 life.
  3. When Carnival of Souls enters the battlefield as a creature due to Opalescence, it triggers, causing you to add {B} and lose 1 life.
  4. Activate Phyrexian Altar by sacrificing Carnival of Souls, adding one mana of any color.
  5. When Carnival of Souls dies, Enduring Renewal triggers, returning Carnival of Souls to your hand from your graveyard.
  6. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Enduring Renewal must be on the battlefield
  - Herald of the Pantheon must be on the battlefield
  - Carnival of Souls must be in your hand
  - Opalescence must be on the battlefield
  - Phyrexian Altar must be on the battlefield
[END OF COMBO PREREQUISITES]
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