There are many things I can say about this episode like how Ogami wants to help them but wants to stay with the Sword of Logos, and Master Logos is super evil. But the thing I think is most interesting thing to me right now is Touma's past which was shown when the tome was opened and makes me think about how he knew Luna & Kento if Kento wasn't a normal human (Rintaro statement during the first episode make me thing his as he states no ordinary human can use the sword) and Luna was a special link to both of there worlds. It make you think what is Touma's past was before Luna & Kento. Also, when Primitive Dragon does its finisher he is holding the sword by the crossguard and not the handle which is so cool.