Warren Soultrader + Mm'menon, Uthros Exile + Dross Harvester

Warren Soultrader

Mm'menon, Uthros Exile

Dross Harvester

How it works

1. Activate Warren Soultrader by paying 1 life and sacrificing the persist creature.
2. When the persist creature dies, its persist ability and Dross Harvester trigger.
3. Resolve the persist trigger, returning the persist creature from your graveyard to the battlefield with a -1/-1 counter on it.
4. Resolve the Dross Harvester trigger, causing you to gain 2 life.
5. Resolve the Warren Soultrader ability, creating a Treasure token.
6. When the Treasure enters, Mm'menon triggers, putting a +1/+1 counter on the persist creature.
7. Repeat.

This loop turns a creature with persist into an engine for infinite resources by feeding it to Warren Soultrader, which generates a Treasure token and offsets the life payment thanks to Dross Harvester's life gain whenever a creature dies. Each time that Treasure enters the battlefield, Mm'menon, Uthros Exile triggers to place a +1/+1 counter on the returning persist creature, which immediately cancels out the -1/+1 counter it received from its persist ability and prepares it to be sacrificed all over again.