Ulamog's Dreadsire + Thornbite Staff + Ashnod's Altar

Ulamog's Dreadsire
Thornbite Staff
Ashnod's Altar

Requires
Ulamog's Dreadsire must be on the battlefield. Thornbite Staff must be on the battlefield. Ashnod's Altar must be on the battlefield. Thornbite Staff attached to Ulamog's Dreadsire. Ulamog's Dreadsire does not have summoning sickness.
Steps
  1. Activate Ulamog's Dreadsire by tapping it, creating a 10/10 Eldrazi creature tokens.
  2. Activate Ashnod's Altar by sacrificing the Eldrazi token, adding .
  3. When the Eldrazi token dies, Ulamog's Dreadsire triggers, untapping Ulamog's Dreadsire.
  4. Repeat.
Results
Infinite colorless mana. Infinite death triggers. Infinite ETB. Infinite LTB. Infinite sacrifice triggers.

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