Titania, Nature's Force, Underworld Breach, Thermopod, and Flamekin Harbinger

Prerequisites

• Titania, Nature's Force on the battlefield
• Underworld Breach on the battlefield
• Thermopod on the battlefield
• Flamekin Harbinger in the graveyard
• available

Steps

1. Cast Flamekin Harbinger from your graveyard for its escape cost by paying and exiling three other cards from your graveyard
2. Flamekin Harbinger enters the battlefield, choose not to search your library
3. Activate Thermopod's second ability by sacrificing Flamekin Harbinger, adding
4. Flamekin Harbinger dies, triggering Titania's second ability, causing you to mill three cards
5. Repeat

Results

• Infinite self-mill
• Near-infinite death triggers
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite sacrifice triggers
• Near-infinite storm count