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

Color identity: WBG
Mana cost: {1}{G}{W}
Steps:
  1. Cast Renegade Rallier by paying {1}{G}{W}.
  2. Renegade Rallier enters the battlefield, targeting Animate Dead.
  3. Holding priority, activate Phyrexian Altar by sacrificing Renegade Rallier, adding one mana of any color.
  4. Resolve the Renegade Rallier trigger, returning Animate Dead from your graveyard to the battlefield.
  5. Animate Dead enters the battlefield, returning Karmic Guide from your graveyard to the battlefield.
  6. Karmic Guide enters the battlefield, targeting Renegade Rallier.
  7. Holding priority, activate Phyrexian Altar by sacrificing Karmic Guide, adding one mana of any color.
  8. Resolve the Karmic Guide trigger, returning Renegade Rallier from your graveyard to the battlefield.
  9. Repeat from step 2.[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:
  - Renegade Rallier must be in your hand
  - Karmic Guide must be in the graveyard
  - Animate Dead must be in the graveyard
  - Phyrexian Altar must be on the battlefield
  - A permanent you controlled has left the battlefield this turn.
[END OF COMBO PREREQUISITES]
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