Emeria Shepherd, Aftermath Analyst, Lithatog, and Horizon Explorer

Prerequisites

• Emeria Shepherd on the battlefield
• Aftermath Analyst on the battlefield
• Lithatog on the battlefield
• Horizon Explorer on the battlefield

Steps

1. Activate any number of lands by tapping them, adding at least
2. Activate Lithatog by sacrificing a land
3. Repeat step 2 until you control no lands
4. Activate Aftermath Analyst by paying and sacrificing it, returning all lands from your graveyard to the battlefield untapped due to Horizon Explorer
5. When the lands enter, Emeria Shepherd triggers that many times
6. Resolve an Emeria Shepherd trigger that was triggered by a Plains, returning Aftermath Analyst from your graveyard to the battlefield
7. Resolve all other Emeria Shepherd triggers, returning any number of nonland permanents from your graveyard to either your hand or the battlefield
8. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite landfall triggers
• Return all nonland permanents from your graveyard to the battlefield
• Infinitely large Lithatog until end of turn