Archelos, Lagoon Mystic, Zimone, Quandrix Prodigy, Retreat to Coralhelm, and Golgari Rot Farm

Prerequisites

• Archelos, Lagoon Mystic on the battlefield
• Zimone, Quandrix Prodigy on the battlefield
• Retreat to Coralhelm on the battlefield
• Golgari Rot Farm in hand
• Zimone does not have summoning sickness
• Archelos is untapped
• available

Steps

1. Activate Zimone's first ability by paying and tapping it, putting Golgari Rot Farm from your hand onto the battlefield untapped due to Archelos
2. Golgari Rot Farm enters the battlefield, triggering itself and Retreat to Coralhelm
3. Activate Golgari Rot Farm by tapping it, adding
4. Resolve the Golgari Rot Farm trigger from step 2, returning itself from the battlefield to your hand
5. Resolve the Retreat to Coralhelm trigger, untapping Zimone
6. Repeat

Results

• Infinite black mana
• Infinite green mana
• Infinite landfall triggers