Pili-Pala, Dual Casting, and Jeska's Will

Prerequisites

• Pili-Pala on the battlefield
• Dual Casting on the battlefield
• Jeska's Will in hand
• available

Steps

1. Cast Jeska's Will by paying its mana cost
2. Holding priority, activate Pili-Pala by paying and tapping it, copying Jeska's Will
3. Resolve the copy of Jeska's Will, adding
4. Activate Pili-Pala by paying and untapping it, adding one mana of any color
5. Repeat from step 2

Results

• Infinite colored mana
• Infinite magecraft triggers
• Exile your library with the ability to play the exiled cards until end of turn