Edgar Markov + Oathsworn Vampire + Warren Soultrader + Prosperous Innkeeper

Edgar Markov

Oathsworn Vampire

Warren Soultrader

Prosperous Innkeeper

How it works

1. Cast Oathsworn Vampire either from your hand or graveyard by paying 1.
2. Edgar triggers, creating a 1/1 Vampire creature token.
3. When the Vampire and Oathsworn Vampire enter, Prosperous Innkeeper triggers twice, causing you to gain 2 life.
4. Activate Warren Soultrader twice by paying 2 life and sacrificing Oathsworn Vampire and the Vampire token, creating two Treasure tokens.
5. Activate two Treasures by tapping and sacrificing them, adding 1.
6. Repeat.

This engine turns a humble little Vampire into a relentless, self-sustaining loop by leveraging life gain and sacrifice. Whenever you cast Oathsworn Vampire, Edgar Markov's eminence ability chimes in to flood the board with an extra token, which immediately triggers Prosperous Innkeeper to pad your life total. That influx of life satisfies Oathsworn Vampire's condition to be recast from the graveyard, while Warren Soultrader gladly converts your freshly generated creatures into Treasures. Sacrificing and tapping those Treasures provides the exact mana needed to repeat the cycle infinitely, netting you endless sacrifice triggers and life gain along the way.