How can you create a combo with Ulamog's Dreadsire, Thornbite Staff, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Ulamog's Dreadsire, Thornbite Staff, Phyrexian Altar

Color identity: C
Mana cost: 
Steps:
  1. Activate Ulamog's Dreadsire by tapping it, creating a 10/10 Eldrazi creature tokens.
  2. Activate Phyrexian Altar by sacrificing the Eldrazi token, adding one mana of any color.
  3. When the Eldrazi token dies, Ulamog's Dreadsire triggers, untapping Ulamog's Dreadsire.
  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
  - Thornbite Staff attached to Ulamog's Dreadsire.
  - Ulamog's Dreadsire does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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