This elegant loop is orchestrated by Vizkopa Guildmage, whose second activated ability establishes a lethal feedback loop where every drop of life you gain is immediately mirrored as life lost by each opponent. To fuel this conversion, you repeatedly bounce Cavern Harpy back to your hand by paying 1 life, quickly draining your own health down to just 1. At that precise moment, you cash in Children of Korlis by sacrificing it to regain all the life you've lost this turn, triggering the Guildmage's payoff for a massive burst of near-infinite lifeloss.