This clever loop turns Woe Strider into an infinite sacrifice engine by exploiting the recursive nature of Necromancy and Archon of Falling Stars. When you sacrifice the Archon to Woe Strider's ability, its death trigger pulls Necromancy out of your graveyard, whose entrance trigger immediately resurrects the Archon right back to the battlefield while attaching itself to it. Because Necromancy becomes an Aura targeting the Archon rather than the creature it originally brought back, it avoids the standard cleanup step sacrifice clause, allowing you to feed the Archon to Woe Strider over and over again to generate infinite sacrifice triggers, creature entries, and infinite scry 1s.