How can you create a combo with Urza, Lord High Artificer, Pili-Pala, Agatha of the Vile Cauldron?
user
[START OF COMBO]This combo can be formed with Urza, Lord High Artificer, Pili-Pala, Agatha of the Vile Cauldron

Color identity: GUR
Mana cost: 
Steps:
  1. Activate Urza's first ability by tapping Pili-Pala, adding {U}.
  2. Activate Pili-Pala by paying {1} and untapping it, adding one mana of any color.
  3. Repeat.
  4. Once you have infinite mana, you may use it to activate Urza's ability.[END OF COMBO STEPS]

Result:
  - Cast all cards in your library without paying their mana costs
  - Infinite colored mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Pili-Pala does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant