Activate Warren Soultrader by paying 1 life and sacrificing another creature, creating a Treasure token and a creature token.
When the creature token enters the battlefield, Soul Warden triggers, causing you to gain 1 life.
Repeat.
This elegant loop transforms a modest sacrifice into a self-sustaining engine by cleverly manipulating token generation. When you activate Warren Soultrader to pay a life and sacrifice a creature, Quina, Qu Gourmet steps in to double your payoff, replacing your single Treasure token with both a Treasure and a 1/1 green Frog creature token. That fresh creature arrival immediately triggers Soul Warden, netting you 1 life to comfortably pay the Soultrader's cost all over again. Because the life you gain replaces the life you pay, you are left free to endlessly churn through your sacrifices, generating a massive hoard of permanent resources.