Back at Giles', Buffy (still wearing that awful outfit) is planning her attack on Toth, when Willow bursts in and tells them about the two, two, two Xanders. Buffy wonders how Willow knew about the situation, and as Willow explains about Dirty Xander and his frantic mission to convince her that he is who he says he is, Giles reads from yet another heavy, leather-bound Book of Doom. "Oh, dear Lord," he sighs. As Buffy, Willow, and Riley attempt to figure out which Xander was the real Xander (and they're leaning towards Willow's, because their Xander was "too forceful and confident"), Giles reminds them that he just said, "Oh, dear Lord." "You always say that," Buffy points out. "Well, it's always important," Giles retorts. Snerk. He informs them that, in fact, neither Xander is a demon. "Is one of them a robot?" Willow wonders. Giles frowns and explains that, actually, the weapon Toth used splits "one person into half, distilling personality traits into two separate bodies." Translating, Giles tells them that Toth was trying to split Buffy into two separate people; one all Super Slayer and one Not Slayer at All. Therefore, when Xander got in the way, his personality was split into its weakest and strongest components (what does it mean when the weakest part of your personality is the most likeable? Because Clean Xander kind of creeped me out). Both Xanders are Xander, Giles explains. Neither is evil, and neither has any qualities that the original Xander didn't already possess somewhere. Wow, the snazzy-dressing quality must have been buried deep, then. Riley wonders why Toth wanted to split the Slayer in two to begin with, especially since the Slayer half would be invincible. Giles moves the plot along by telling them that if one of the two halves is killed, both die. And non-Slayer Buffy would have been toast. Buffy comments helpfully that if they lose one Xander, they lose them both.