Warren Soultrader + Seedship Broodtender + Reveillark + Boss's Chauffeur + Guide of Souls

Warren Soultrader

Seedship Broodtender

Reveillark

Boss's Chauffeur

Guide of Souls

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, Guide of Souls and Boss's Chauffeur trigger.
4. Resolve the Guide of Souls trigger, causing you to gain 1 life and get E.
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, Guide of Souls triggers that many times, causing you to gain that much life and get that much E.
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, Guide of Souls triggers, causing you to gain 1 life and get E.
17. Repeat.

This intricate sacrifice engine uses Warren Soultrader as the ultimate outlet, turning life and creatures into Treasures while feeding a relentless loop of mortality. When Reveillark hits the graveyard, its leaves-the-battlefield trigger pulls back Seedship Broodtender and Boss's Chauffeur, seeding the board with new fodder while Seedship Broodtender mills your library. As the loop progresses, Boss's Chauffeur swells with counters and floods the board with Citizen tokens upon death, which Guide of Souls turns into a steady stream of life and energy. Finally, the accumulated Treasures fund Seedship Broodtender's own sacrifice ability to bring Reveillark right back, restarting the cycle for infinite mana, tokens, and death triggers.