I'm expecting the Warrior one gets turned into a huge several month long "visit the cave once a day" camp. logging in and out for an hour obviously is not the way blizzard intended. even after someone got the shield there was a huge debate on if you needed to log out in the cave, or log out outside and then run it. or if reading the "fluff" in your quest hall increased its chance. or if jumping on one foot helped. it was none of this, just go in the cave sit in one spot log in and out until you hear the roar.
for the Paladin one i know you guys need a book, is it a drop? most of the Artifact appearances (much to peoples dismay) has basically been "get an item from a mob who may drop it" or "look in xxx place for xxx amount of time" or are AK or Rep gated.
we've had a few more confirmations from the warrior discord that the people who got the Fury artifact hilt (3 different people) from skovald in HoV which is 1 out of 3 parts for the weapon were exalted with the valarjar at the time, so its rep gated.