This loop turns your graveyard into an engine by letting Six grant retrace to Chromatic Sphere, allowing you to cast the artifact repeatedly by discarding lands instead of paying mana. Meanwhile, The Necrobloom provides a crucial safety valve and synergy by giving all land cards in your graveyard dredge 2, ensuring you never run out of fodder to discard and keeping your library churning. Finally, Armor Wars fits right into the mix as a payoff that benefits from your heavily-churned artifacts, though the true brilliance of the combo lies in how Six and The Necrobloom seamlessly recycle your resources to fuel endless self-mill and storm count.