This clever loop transforms a sacrificial cycle into an engine for endless recursion, anchored by Havi, the All-Father's ability to pull lesser legendary creatures from the graveyard whenever a legendary creature you control dies. Phantom Train acts as the catalyst by offering a way to sacrifice your creatures while growing its own stats, feeding directly into the graveyard strategy. Meanwhile, Sakashima the Impostor cleverly enters the battlefield as a copy of Havi while retaining its own legendary status and name, ensuring that its subsequent death constantly triggers the very recursion needed to bring it right back alongside other fallen legends.