Retreat to Emeria, Haru, Hidden Talent, Strip Mine, and Archelos, Lagoon Mystic

Prerequisites

• Retreat to Emeria on the battlefield
• Haru, Hidden Talent on the battlefield
• Strip Mine in hand
• Archelos, Lagoon Mystic in hand

Steps

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

Results

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