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

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

Result:
  - Cast all cards in your library without paying their mana costs
  - Infinite +1/+1 counters
  - Infinite colored mana
  - Near-infinite storm count[END OF COMBO RESULT][END OF COMBO]

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