re: spelling--"Ood" and "Zack," according to the closed captioning. :) (And I nearly mispelled "spelling" there. Um.)

At a guess: what's going to rise from the seal in Sunnydale High ancient bronze plate isn't meant to be the Judeo-Christian devil per se but an entity which can, if it wants, masque as same. The reverse of the B5 Vorlons, if you like, who can appear as angelic/divine creatures because they can access the relevant genetic memories of all races.

That sounds about right, yeah, and also, oooh, B5/Dr Who crossover? Hm ...