Zimone, Quandrix Prodigy, Retreat to Coralhelm, Stone-Seeder Hierophant, and Golgari Rot Farm

Prerequisites

• Zimone, Quandrix Prodigy on the battlefield
• Retreat to Coralhelm on the battlefield
• Stone-Seeder Hierophant on the battlefield
• Golgari Rot Farm in hand
• available

Steps

1. Activate Zimone's first ability by paying and tapping it, putting Golgari Rot Farm from your hand onto the battlefield
2. When Golgari Rot Farm enters the battlefield, it, Retreat to Coralhelm and Stone-Seeder Hierophant trigger Resolve the Stone-Seeder Hierophant trigger, untapping it
3. Holding priority, activate Stone-Seeder Hierophant by tapping it, untapping Golgari Rot Farm
4. Activate Golgari Rot Farm by tapping it, adding
5. Resolve the Golgari Rot Farm trigger from step 2, returning it from the battlefield to your hand
6. Resolve the Retreat to Coralhelm trigger, untapping Zimone
7. Repeat

Results

• Infinite landfall triggers
• Infinite mana lands you control can produce
• Infinite green mana
• Infinite black mana
• Infinite untap of lands you control