Warren Soultrader + Seedship Broodtender + Reveillark + Boss's Chauffeur + Relic Vial

Warren Soultrader

Seedship Broodtender

Reveillark

Boss's Chauffeur

Relic Vial

How it works

1. Activate Warren Soultrader by paying 1 life and sacrificing Reveillark.
2. When Reveillark dies, it and Relic Vial trigger.
3. Resolve the Relic Vial trigger, causing you to gain 1 life and each opponent to lose 1 life.
4. Resolve the Reveillark trigger, 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.
5. When Seedship Broodtender enters, it and Boss's Chauffeur trigger, causing you to mill three cards and put a +1/+1 counter on Boss's Chauffeur.
6. Resolve the Warren Soultrader ability, creating a Treasure token.
7. Activate Warren Soultrader by paying 1 life and sacrificing Boss's Chauffeur.
8. When Boss's Chauffeur dies, it and Relic Vial trigger.
9. Resolve the Relic Vial trigger, causing you to gain 1 life and each opponent to lose 1 life.
10. Resolve the Boss's Chauffeur trigger, creating a 1/1 Citizen creature token for each +1/+1 counter on it.
11. Resolve the Warren Soultrader ability, creating a Treasure token.
12. Activate Warren Soultrader by paying 1 life and sacrificing a Citizen.
13. When the Citizen dies, Relic Vial triggers, causing you to gain 1 life and each opponent to lose 1 life.
14. Resolve the Warren Soultrader ability, creating a Treasure token.
15. Repeat from step 12 two additional times.
16. Activate five Treasures by tapping and sacrificing them, adding 3.
17. Activate Seedship Broodtender by paying 3 and sacrificing it.
18. When Seedship Broodtender dies, Relic Vial triggers, causing you to gain 1 life and each opponent to lose 1 life.
19. Resolve the Seedship Broodtender ability, returning Reveillark from your graveyard to the battlefield.
20. Repeat.

This intricate loop transforms a quiet graveyard into an unstoppable engine of life-drain and resource generation, anchored by Relic Vial amplifying every single death in your web of sacrifices. Warren Soultrader acts as the ultimate sacrifice outlet, feeding on your creatures to generate Treasure tokens and fueling the continuous cycle. When Reveillark hits the graveyard, its leaves-the-battlefield trigger pulls back Seedship Broodtender and Boss's Chauffeur, ensuring the board stays flush with fresh fodder and growing counters. Boss's Chauffeur swells in power and pays off that growth by bursting into Citizen tokens when sacrificed, while Seedship Broodtender mills your library and can later spend its activated ability to recursion-loop Reveillark right back onto the battlefield.