This loop turns a seemingly harmless little goblin into a self-sustaining engine by exploiting Dissipation Field's protective bounce. Because Spear Spewer deals damage to you when its tap ability is activated, the Field immediately returns it to your hand for just one mana to recast. Meanwhile, Anger rests safely in your graveyard—assuming you control a Mountain—granting the necessary haste so that recast creatures can immediately tap again. Every time you recast Spear Spewer, Runaway Steam-Kin watches a red spell enter the stack to effortlessly refuel its counters, letting you harvest a steady stream of red mana to keep the entire cycle spinning.