Archelos, Lagoon Mystic, Patron of the Moon, and Golgari Rot Farm

Prerequisites

• Archelos, Lagoon Mystic on the battlefield
• Patron of the Moon on the battlefield
• Golgari Rot Farm in hand
• available

Steps

1. Pay to activate Patron of the Moon, putting Golgari Rot Farm onto the battlefield
2. Golgari Rot Farm triggers, targeting itself
3. With the trigger on the stack, tap Golgari Rot Farm for
4. Allow the trigger to resolve, returning Golgari Rot Farm to your hand
5. Repeat

Results

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