This explosive loop turns your graveyard into a bottomless well by leaning on Underworld Breach to cast Reforge the Soul over and over again from your graveyard using its escape cost. Normally, forcing opponents to draw seven cards would be a dangerous proposition, but Hullbreacher steps in to completely flip the script: instead of filling your foes' hands, its replacement effect intercepts those extra draws to flood your board with a mountain of Treasure tokens. You simply crack five of those freshly minted Treasures to pay the exact mana required to escape Reforge the Soul once more, generating a massive net positive of mana and artifacts while digging through your entire deck.