How can you create a combo with Karmic Guide, Reveillark, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Karmic Guide, Reveillark, Phyrexian Altar

Color identity: W
Mana cost: 
Steps:
  1. Activate Phyrexian Altar by sacrificing Karmic Guide, adding one mana of any color.
  2. Activate Phyrexian Altar by sacrificing Reveillark, adding one mana of any color.
  3. Reveillark dies, returning Karmic Guide from your graveyard to the battlefield.
  4. Karmic Guide enters the battlefield, returning Reveillark from your graveyard to the battlefield.
  5. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
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