How can you create a combo with Imperious Perfect, Faces of the Past, Phyrexian Altar, Llanowar Elves?
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[START OF COMBO]This combo can be formed with Imperious Perfect, Faces of the Past, Phyrexian Altar, Llanowar Elves

Color identity: GU
Mana cost: 
Steps:
  1. Activate Llanowar Elves by tapping it, adding {G}.
  2. Activate Imperious Perfect by paying {G} and tapping it, creating a 1/1 Elf Warrior creature token.
  3. Activate Phyrexian Altar by sacrificing the Elf Warrior, adding one mana of any color.
  4. The Elf Warrior dies, triggering Faces of the Past, untapping all Elves and Warriors.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite untap of all Elves and Warriors[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Imperious Perfect and Llanowar Elves do not have summoning sickness.
[END OF COMBO PREREQUISITES]
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