Marvin, Murderous Mimic, Simic Ragworm, and Selvala, Heart of the Wilds

Prerequisites

• Marvin, Murderous Mimic on the battlefield
• Simic Ragworm on the battlefield
• Selvala, Heart of the Wilds on the battlefield
• Marvin does not have summoning sickness
• available

Steps

1. Activate Marvin using Selvala's ability by paying and tapping it, adding at least
2. Activate Marvin using Soliton's ability by paying , untapping it
3. Repeat

Results

• Infinite colored mana