This elegant loop hinges on a clever recursive partnership between Iridescent Drake and Kaya's Ghostform, creating an unstoppable engine fueled by Viscera Seer. When you sacrifice the Drake to the Seer, the Ghostform protects it by immediately returning it to the battlefield from the graveyard. In turn, the Drake's own enters-the-battlefield ability triggers to fish Kaya's Ghostform right back out of the graveyard and reattach it to the Drake, resetting the entire trap. Because this entire cycle costs no net resources while yielding endless deaths, sacrifices, and scrys, you can dig through your entire library in search of a winning payoff.