This is a Firebrand build that Crim put on Discord.
It looks a bit like my old healing guardian I used in dungeons/fractals.
The valor has been swapped out to make it a firebrand.
The 6-10 on the skill bar are completely different to make use of the new firebrand skills but the choice of weapons is the same.
I haven't really learned how to use a firebrand so I can't judge much more than that atm.