Return of Reckoning

I know SCs aren't very serious business (at least the advice chat in-game and the discord chat seems to think so), but I usually really enjoy the short bite-sized PvP options cause it allows me to not get stuck in chasing a warband for hours on end (or not being able to join said warband cause of ...

After some searching I finally found the 4 items for the first 2 Explorer pieces, and now I've been looking for more - one thing I ran into was Decasor En'trio offering a quest and upgrade items for an Explorer Ring. Did the quest, got the upgrade item, but now I have no clue where to find the ...