How can you create a combo with Sigil of the New Dawn, Pitiless Plunderer, Phyrexian Altar, Ornithopter?
user
[START OF COMBO]This combo can be formed with Sigil of the New Dawn, Pitiless Plunderer, Phyrexian Altar, Ornithopter

Color identity: WB
Mana cost: 
Steps:
  1. Activate Phyrexian Altar by sacrificing Ornithopter, adding {1}.
  2. When Ornithopter dies, Sigil of the New Dawn and Pitiless Plunderer trigger.
  3. Resolve the Pitiless Plunderer trigger, creating a Treasure token.
  4. Activate the Treasure by tapping and sacrificing it, adding {W}.
  5. Resolve the Sigil of the New Dawn trigger, causing you to pay {1}{W} to return Ornithopter to your hand from your graveyard.
  6. Cast Ornithopter by paying {0}.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
assistant