The dragons are smart indeed. It’s so rare to see bad guys bum rush the protagonist all at once instead of challenging the protag - and losing - one by one. The only other instance I can think of off the top of my head is

non-anime title

Matrix with the Smiths vs Neo fight.

It sucks that they off-screened the end of the dragon fight, but comedic moments in the second half of the episode made up for it.

…bruh. Anyone can tell that you are the elven mage from the way you talk.

Banner nomination: best pose from Himmel so far