Warren Soultrader + Seedship Broodtender + Reveillark + Boss's Chauffeur + Answered Prayers

Warren Soultrader

Seedship Broodtender

Reveillark

Boss's Chauffeur

Answered Prayers

How it works

1. Activate Warren Soultrader by paying 1 life and sacrificing Reveillark.
2. When Reveillark dies, it triggers, returning Seedship Broodtender and Boss's Chauffeur from your graveyard to the battlefield. Boss's Chauffeur will enter with a +1/+1 counter on it equal to the number of creatures you control.
3. When Seedship Broodtender enters, it, Answered Prayers and Boss's Chauffeur trigger.
4. Resolve the Answered Prayers trigger, causing you to gain 1 life.
5. Resolve the Boss's Chauffeur trigger, putting a +1/+1 counter on Boss's Chauffeur.
6. Resolve the Seedship Broodtender trigger, causing you to mill three cards.
7. Resolve the Warren Soultrader ability, creating a Treasure token.
8. Activate Warren Soultrader by paying 1 life and sacrificing Boss's Chauffeur.
9. When Boss's Chauffeur dies, it triggers, creating a 1/1 Citizen creature token for each +1/+1 counter on it.
10. When the Citizens enter, Answered Prayers triggers that many times, causing you to gain that much life.
11. Resolve the Warren Soultrader ability, creating a Treasure token.
12. Activate Warren Soultrader by paying 1 life and sacrificing a Citizen, creating a Treasure token.
13. Repeat step 12 two additional times.
14. Activate five Treasures by tapping and sacrificing them, adding 3.
15. Activate Seedship Broodtender by paying 3 and sacrificing it, returning Reveillark from your graveyard to the battlefield.
16. When Reveillark enters, Answered Prayers triggers, causing you to gain 1 life.
17. Repeat.

This intricate loop revolves around Warren Soultrader acting as a sacrifice outlet that funds its own costs with Treasures while feeding Reveillark back into the graveyard. Reveillark's leaves-the-battlefield trigger pulls back Seedship Broodtender and Boss's Chauffeur, generating a flurry of enters-the-battlefield triggers that Answered Prayers happily converts into a steady stream of life. As Boss's Chauffeur grows and eventually dies to yield a horde of Citizen tokens, you accumulate enough sacrifices and mana to loop Seedship Broodtender's revival ability—ultimately recycling Reveillark and keeping the entire engine running infinitely.