Archelos, Lagoon Mystic, Patron of the Moon, and Dimir Aqueduct

Prerequisites

• Archelos, Lagoon Mystic on the battlefield
• Patron of the Moon on the battlefield
• Dimir Aqueduct in hand
• available

Steps

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

Results

• Infinite black mana
• Infinite blue mana
• Infinite landfall triggers