Kenrith, the Returned King, Earthcraft, Agatha of the Vile Cauldron, and Linvala, Shield of Sea Gate

Prerequisites

• Kenrith, the Returned King on the battlefield
• Earthcraft on the battlefield
• Agatha of the Vile Cauldron on the battlefield
• Linvala, Shield of Sea Gate in the graveyard

Steps

1. Activate a basic Swamp by tapping it, adding
2. Activate Kenrith's fifth ability by paying due to Agatha, returning Linvala from your graveyard to the battlefield
3. Activate Earthcraft by tapping Linvala, untapping the basic Swamp
4. Activate Linvala by sacrificing it
5. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers