It didn't seem to matter either way, as we were wiped out within seconds. There was a lore entry that suggested that killing the adds first would cause him to enrage. Then we got to the boss, a fire-breathing dragonborn with two rage drake adds. We got into a group relatively quickly, and seemed to do okay on the trash, even though people were getting downed on almost every pull. Since we were supposedly sufficiently geared for epic anyway, we decided to give that a go, though not without trepidation. According to the wiki it's unlocked through the campaign window, which is blatantly not true anymore, and our skirmish queue only displayed the epic version.

Our first problem was that we couldn't figure out how to get there. We've reached a point where, in order to unlock the next character boon, we both need an item that, according to the campaign window, comes from the Shores of Tuern skirmish. My pet tank and I have slowly been working our way through the Tyranny of Dragons campaign.