How can you create a combo with Poppet Stitcher // Poppet Factory, Mana Echoes, Phyrexian Altar, Mystic Speculation?
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[START OF COMBO]This combo can be formed with Poppet Stitcher // Poppet Factory, Mana Echoes, Phyrexian Altar, Mystic Speculation

Color identity: UR
Mana cost: {2}{U}
Steps:
  1. Cast Mystic Speculation with buyback by paying {2}{U}.
  2. Poppet Stitcher triggers, creating a 2/2 Zombie creature token.
  3. When the Zombie enters the battlefield, Mana Echoes triggers, adding {C} for each Zombie you control.
  4. Resolve Mystic Speculation, causing you to scry 3 and returning Mystic Speculation to your hand.
  5. Activate Phyrexian Altar by sacrificing the Zombie, adding {U}.
  6. Repeat.
  7. If you control two or more Zombies as the combo begins, this combo nets infinite colorless mana.[END OF COMBO STEPS]

Result:
  - Infinite colorless mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite magecraft triggers
  - Infinite sacrifice triggers
  - Infinite scry 3
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Poppet Stitcher // Poppet Factory must be on the battlefield
  - Mana Echoes must be on the battlefield
  - Phyrexian Altar must be on the battlefield
  - Mystic Speculation must be in your hand
  - You control at least one Zombie.
[END OF COMBO PREREQUISITES]
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