Question: In season 7 episode 10 we are introduced to a vampire that other vampires fear, called the Turok-Han. Buffy finally destroys the only one released after a long fight, but still gets many cuts and bruises whilst doing so. In the final episode of season 7 when all the slayers are activated, one slayer is fighting more than one Turok-Han without a problem. Why do they find it easier once all the slayers have been activated?
Answer: The first thing that happened to them when all the slayers were activated was a big surge of confidence. They stopped being afraid of the Turok-Han, making it much easier to fight them.
Conversations With Dead People - S7-E7
Question: Is Dawn's experience in this episode ever explained? Is it really their mother, or is it just the First messing with her?
Answer: Dawn's experience here was meant to be a teaser for original plotline of season 7, intended to explore Dawn's Key-ness and how it affects her place in the universe now that it's gone. However, when SMG left the show, the writers were forced to pursue a different plotline to give viewers a satisfactory ending. So it was supposed to be Joyce when the episode was written, but subsequent reinterpretation implies that it is actually the First.
Answer: She has superpowers, ergo fast movement. The reason she outruns him so easily in "Touched" is that she stops trying to actually fight him and just dodges instead.
Shay