How can you create a combo with Missy, Phyrexian Altar, Horde Ambusher?
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[START OF COMBO]This combo can be formed with Missy, Phyrexian Altar, Horde Ambusher

Color identity: UBR
Mana cost: 
Steps:
  1. Activate Phyrexian Altar by sacrificing Horde Ambusher, adding one mana of any color.
  2. When Horde Ambusher dies, Missy's first ability triggers, returning Horde Ambusher from your graveyard to the battlefield face down as a 2/2 Cyberman artifact creature.
  3. Activate Horde Ambusher's morph ability by revealing a red card from your hand, turning it face up.
  4. 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
  - You have at least one red card in hand.
[END OF COMBO PREREQUISITES]
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