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

Archelos, Lagoon Mystic
Patron of the Moon
Golgari Rot Farm

Requires
Golgari Rot Farm in hand. All other permanents on the battlefield. 1 available.
Steps
  1. Pay 1 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 bg
  4. Allow the trigger to resolve, returning Golgari Rot Farm to your hand
  5. Repeat
Results
Infinite landfall triggers. Infinite black mana. Infinite green mana.