Veinwitch Coven, Carnival of Souls, and Thunder of Unity

Prerequisites

• Veinwitch Coven on the battlefield
• Carnival of Souls on the battlefield
• Thunder of Unity on the battlefield or in the graveyard

Steps

1. Cast the creature card from your hand for
2. The creature enters, then immediately dies as a state-based action due to having 0 toughness
3. When the creature enters, Carnival of Souls and Thunder of Unity trigger
4. Resolve the Carnival of Souls ability, adding and losing 1 life
5. Resolve the Thunder of Unity ability, gaining 1 life and causing each opponent to lose 1 life
6. When you gain life, Veinwitch Coven triggers, causing you to pay to return the creature card from your graveyard to your hand
7. Repeat

Results

• Infinite creature ETB
• Infinite creature LTB
• Infinite death triggers
• Infinite storm count
• Infinite lifeloss