Here's a great two-on-one fight about to happen between three crossover characters. Usually one-on-one is all you need, but when you've got an already hard opponent, like Super Buu, with the added powers and looks of an arrancar, you're going to need as much help as possible from an extra person. This calls for a combined effort of one soul reaper (Rukia Kuchiki) and a super powerful demon (Kurama) to defeat him.