This engine turns the recursion power of Adarkar Valkyrie into a continuous loop by using Carrion Feeder as both the willing sacrifice and the target for the Valkyrie's delayed return trigger. Because Carrion Feeder can instantly sacrifice itself to put a +1/+1 counter on itself, it enters the graveyard on command while growing larger with every iteration. Meanwhile, Thornbite Staff plays a silent yet crucial role in this setup: if your chosen creature happens to be a Shaman—or if you pay to equip it—the Staff provides the untap capability and ranged damage, though here the core loop is safely sustained entirely through the Valkyrie's targeting and the Feeder's self-sacrifice.