Zimone and Dina, Bloodghast, Retreat to Coralhelm, and Arid Archway

Prerequisites

• Zimone and Dina on the battlefield
• Bloodghast on the battlefield
• Retreat to Coralhelm on the battlefield
• Arid Archway in hand

Steps

1. Activate Zimone and Dina by tapping it and sacrificing Bloodghast, causing you to draw a card and put Arid Archway from your hand onto the battlefield, and then repeat this process once if you control eight or more lands, putting any other land from your hand onto the battlefield instead
2. When Arid Archway enters the battlefield, it, Bloodghast and Retreat to Coralhelm trigger
3. Resolve the Arid Archway trigger, returning it from the battlefield to your hand
4. Resolve the Bloodghast trigger, returning it from your graveyard to the battlefield
5. Resolve the Retreat to Coralhelm trigger, untapping Zimone and Dina
6. Repeat

Results

• Infinite card draw
• Near-infinite ETB
• Infinite draw triggers
• Near-infinite landfall triggers
• Near-infinite LTB
• Near-infinite death triggers
• Near-infinite sacrifice triggers
• Put all lands from your hand and library onto the battlefield