Scaled Herbalist, Dimir Aqueduct, and Elven Raft-Steerer

Prerequisites

• Scaled Herbalist on the battlefield
• Dimir Aqueduct in hand
• Elven Raft-Steerer on the battlefield

Steps

1. Activate Scaled Herbalist by tapping it, putting Dimir Aqueduct from your hand onto the battlefield
2. When Dimir Aqueduct enters the battlefield, it and Elven Raft-Steerer trigger
3. Resolve the Dimir Aqueduct trigger, returning itself from the battlefield to your hand
4. Resolve the Elven Raft-Steerer trigger, untapping Scaled Herbalist
5. Repeat

Results

• Infinite landfall triggers