Cast Oathsworn Vampire either from your hand or graveyard by paying 1.
Edgar triggers, creating a 1/1 Vampire creature token.
Activate Warren Soultrader by paying 1 life and sacrificing Oathsworn Vampire.
When Oathsworn Vampire dies, Venerated Stormsinger triggers, causing each opponent to lose 1 life and you to gain 1 life.
Resolve the Warren Soultrader ability, creating a Treasure token.
Repeat steps 3 through 5 once, sacrificing the Vampire token instead.
Activate two Treasures by tapping and sacrificing them, adding 1.
Repeat.
This elegant loop turns the cycle of life and death into an unstoppable drain on your opponents, powered by an economy of blood and treasure. Whenever you cast Oathsworn Vampire, Edgar Markov’s *Eminence* ability steps in to sweeten the deal, immediately supplying a fresh Vampire token to keep the machinery oiled. You can then feed both the Vampire and Oathsworn Vampire to Warren Soultrader, generating the mana and life-boosting triggers you need. Every single sacrifice triggers Venerated Stormsinger to drain your foes and gain you life, which in turn unlocks Oathsworn Vampire's graveyard-casting condition so the whole cycle can begin anew.