Agreed, the CGI was bad for this dragon. Made it comical.
I believe it was some sort of breath attack, not sure if it was a different element than the fire one we saw afterwards which was indeed used but the student MC blocked it with his special sword or something. And if it wasn't, it looked like a major ability regardless. And I think it was going to use another of those moves again when the student MC saved the hot-blooded dude, but it was hard to tell.result:
-teacher fatal blow: what was that, what attack did that, why did that dyno not fire that attack again at students ?
-chibi dragon vore: we had what, less thant 10/20 frames when she jumps and bites and she easily bites that monster that killed a teacher ? I could just accept she's that strong already and it seems the focus was on her being a monster and probably her fear of losing her humanity. But I'd like such an important scene to be better animated.
That aside, it's not really about "using it again", if we see the stats from our spider, there are Magic Points and Stamina Points to consider, which seems to be integral to how the world works.
As for the chibii dragon, it looked quite nonsensical and that aside, agreed... it looked like an important scene which lacked better execution. I would like to go back and read this portion in the light novel, at least the chibi dragon attack and see how it happened. Feels she took it down too easily. For someone we've been assuming has been lazy and not leveling up, it seemed to kill that dragon with ease.
Other than that, I think it failed to ingrain the horror of the world to these students which seem naive to this point.
Honestly, show seems slow right now, but it really is trying to fit in a lot of content rapidly so that we may get more into the story quicker.
And man, was that teacher weak... hope that's not the norm.
She looked bigger in comparison to the humans in this latest episode.