The relic will not drop, it is a quest where at one point you have to kill those primals HM.
But Primal sHM for this quest do drop weapons that are very nice.

For armor you will start with drops from dungeons while you are collecting the tomes that allows you to buy from revenants toll.
Dungeon will give you tomes (Mythology and Soldiery) and loot. And with tomes you will be able to buy afterwards some loot.

Weathered is the best you can buy but you can only collect 450 soldiery tomes per week.

Aim for loot at first, and amass mythology. And buy some Mythology equipment.
You are a Tank, there is so much a healer can do to keep you alive, we cannot do miracles if you are one shot.