Veinwitch Coven + Carnival of Souls + Guide of Souls

Veinwitch Coven

Carnival of Souls

Guide of Souls

How it works

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