The dragon fucking sucks, my rant

How is it possible that a DRAGON is so fucking weak, no stamina, no health, shit movement, long ass cooldown (unless you have the item to respawn him).

I swear nobody did a testrun of this shit with the towers mission. I try to attack a single tower but not only does my attacks not land bc somehow they have a technology that can manipulate space to avoid a FIREBALL but they also spam so many attacks on you, I basicaly lose 40% of my health the moment I enter combat, not to mention the small ass arena in which I cant get enough distance to fight properly.

Well this is my rant, anyone else also have issues with that mission or dragon in general?