How can you create a combo with Filigree Sages, Prototype Portal, Seat of the Synod, Agatha of the Vile Cauldron?
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[START OF COMBO]This combo can be formed with Filigree Sages, Prototype Portal, Seat of the Synod, Agatha of the Vile Cauldron

Color identity: GUR
Mana cost: 
Steps:
  1. Activate Prototype Portal by paying {0} and tapping it, creating a token copy of Seat of the Synod.
  2. Activate the Seat of the Synod token by tapping it, adding {U}.
  3. Activate Filigree Sages by paying {U}, untapping Prototype Portal.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite landfall triggers
  - Infinite tapped Seat of the Synod tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Filigree Sages must be on the battlefield
  - Prototype Portal must be on the battlefield
  - Seat of the Synod must be exiled
  - Agatha of the Vile Cauldron must be on the battlefield
  - Agatha of the Vile Cauldron has power 2 or greater.
[END OF COMBO PREREQUISITES]
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