Difficulty is always 8 — every die showing 8+ is a success. A die at the explode threshold adds another die (which can explode again). Specialty adds a die; Willpower adds three and guarantees the action isn't a botch. Rote rerolls every failed die once. Automatic successes are added flat on top of the roll (superhuman chrome/psionics). More 1s than successes is a botch unless Willpower or an automatic success saves it.