Marvin, Murderous Mimic, Pili-Pala, and Orochi Merge-Keeper

Prerequisites

• Marvin, Murderous Mimic on the battlefield
• Pili-Pala on the battlefield
• Orochi Merge-Keeper on the battlefield
• Marvin does not have summoning sickness and is modified

Steps

1. Activate Marvin using Orochi Merge-Keeper's ability by tapping it, adding
2. Activate Marvin using Pili-Pala's ability by paying and untapping it, adding one mana of any color
3. Repeat

Results

• Infinite colored mana