This clever loop turns Zameck Guildmage’s static-buffing activation into the ultimate counterbalance for the grave-bound drawback of Putrid Goblin. By ensuring the Goblin returns from its persist trigger with a +1/+1 counter instead of a -1/-1 counter, Zameck Guildmage cancels out the counter state entirely and lets the Goblin keep dying indefinitely. Meanwhile, Sling-Gang Lieutenant sits back and capitalizes on that endless cycle, turning every single sacrifice of Putrid Goblin into an infinite stream of life drain.