Veinwitch Coven, Carnival of Souls, and Lifecreed Duo

Prerequisites

• Veinwitch Coven on the battlefield
• Carnival of Souls on the battlefield
• Lifecreed Duo on the battlefield

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 Lifecreed Duo trigger
4. Resolve the Carnival of Souls ability, adding and losing 1 life
5. Resolve the Lifecreed Duo ability, gaining at least 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