Kenrith, the Returned King, Earthcraft, Agatha of the Vile Cauldron, and Death Cultist

Prerequisites

• Kenrith, the Returned King on the battlefield
• Earthcraft on the battlefield
• Agatha of the Vile Cauldron on the battlefield
• Death Cultist 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 Death Cultist from your graveyard to the battlefield
3. Activate Earthcraft by tapping Death Cultist, untapping the basic Swamp
4. Activate Death Cultist by sacrificing it
5. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite lifegain
• Infinite lifegain triggers
• Infinite lifeloss
• Infinite sacrifice triggers