This cunning loop transforms your life total directly into lethal damage by turning Aettir and Priwen into a scaling battery for Disciple of Griselbrand and Vizkopa Guildmage. Because Aettir and Priwen sets the equipped creature's power and toughness equal to your life total, sacrificing that creature to Disciple of Griselbrand yields a massive surge of life that instantly triggers Vizkopa Guildmage's second ability. That resulting life-to-damage conversion drains your opponents for that exact amount, which in turn reinforces the equipment's toughness for the next iteration—or can be fueled by Vizkopa Guildmage's first ability if you need to jump-start the lifelink connection.