Neverwinter

Like Usual, Knox will have a quest that leads you to Smerdiuk in Protectors Enclave. He will give a quest that opens up a queue for some new dragon fights. You need to complete the intro quest and the next quest after that for this achievement.

-You need to run Smerdiuk's Hunt once. It's a solo queue but Smerdiuk joins to help with the hunt.
-You need to run the Young Dragon Hunt once. A solo queue with no AI help this time.
-You need to run the Adult dragon queue 4 times. This supports 3 players and has a random queue.

Once you turn in the quest after the 4 Adult dragons, the achievement will pop. Your progress will be in the quest log and ask for you to be Dragon Hunter Rank 5. The tutorial does not count towards this quest.

I'm a 73k cleric and these dragons were big damage sponges. None of them for this achievement should 1 shot you, but you may need to heal quite often, more so on the adult dragons.

You will need 10 more adult hunts after this for the other achievement. Fun stuff.