Retreat to Emeria + Haru, Hidden Talent + Strip Mine + Horizon Explorer

Prerequisites

• You are able to play a land this turn.
• There's another land on the battlefield.

Steps

1. 1Play Strip Mine.
2. 2When Strip Mine enters, Retreat to Emeria triggers, creating a 1/1 Kor Ally creature token.
3. 3When the Kor Ally enters, Haru triggers, earthbending Strip Mine.
4. 4Activate Strip Mine's second ability by tapping and sacrificing it, targeting another land.
5. 5Haru triggers, returning Strip Mine from your graveyard to the battlefield untapped due to Horizon Explorer.
6. 6Repeat from step 2.

Effects

• Destroy all lands opponents control
• Destroy all lands that enter the battlefield under an opponent's control
• Infinite creature ETB
• Infinite creature tokens
• Infinite landfall triggers
• Lock
• Mass Land Denial