This clever loop transforms raw metal into a self-sustaining engine, using Triskelavus to manufacture its own sacrificial fodder by spending mana to pop off a counter and spawn a Triskelavite. You can immediately feed that fresh token into Ashnod's Altar to recoup your investment and net a colorless mana profit. Meanwhile, the mere act of sending that token to the graveyard triggers Long Feng, Grand Secretariat, whose vigilant eye spots the departure and promptly replaces the spent counter right back onto Triskelavus. By cycling this birth-and-sacrifice sequence indefinitely, you generate an endless stream of triggers and colorless mana to fuel your victory.