BRD - Lower Prison.
With Joyous Journey active, you can go from level 49 to 58 in just under 2 hours.
Method:
- 1 person in group needs to be level 49-51
- Another person in group needs to 53-57
- Queue using the random dungeon queue
Each and every time you will get BRD Lower Prison.
You now simply go kill the Interrogator Gershan in the lower prison, get your goodie bag, and bonus exp and queue again.
With a decent tank and healer, runs can be between 3-5 mins, sometimes just under 3 mins. With a full group constantly queueing, you can get from 49 to 58 in just under 2 hours maybe a little less if the group is hustling.
Happy Joyous Journeys!