This classic loop centers on Lesser Masticore and its persist ability, which normally would exhaust itself after a single recursion due to the accumulated -1/-1 counter. Enter Vizier of Remedies, whose replacement effect cleverly reduces that counter placement to zero, allowing the mechanical rat to return to the battlefield fresh and ready to die again. To fuel this endless cycle, you sacrifice the Masticore to Viscera Seer, turning each iteration of death and rebirth into infinite scrys while digging through your library and triggering any other graveyard-bound synergies you desire.