Veinwitch Coven + Carnival of Souls + Daxos, Blessed by the Sun

Veinwitch Coven

Carnival of Souls

Daxos, Blessed by the Sun

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 Daxos trigger and when the creature dies, Daxos triggers.
3. Resolve the Carnival of Souls ability, adding and losing 1 life.
4. Resolve both Daxos abilities, gaining 2 life.
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.