I'm wondering what other people's experience with this quest is. Unlike the intro to Shadow Rune, you're actually playing for something with a TON of game significance. And also unlike the intro to Shadow Rune, this encounter seems weighted in the OL's favor.
I've played it three times now. In one of them, the OL played it cagey - waited for his moment then jumped on the objective. The heroes had a HUGE advantage - we were able to whittle him down to a fairly small number of goblins, because he was taking it slow. We eventually won, but not before - on the last turn - the OL took his last remaining forces, and through judicious use of cards, was nearly able to make it to the exit. He started the turn with three goblins on the board and no goblin closer than four spaces from the objective token - and he ended the turn three spaces from the exit. If we had rolled slightly worse - missed a goblin or two, even if we killed the ball-carrier - he just spawns a reinforcement, and wins.
The other two times were complete blowouts. The overlord (same friend in both cases) saw no reason to play anything other than aggressive as possible. The heroes basically waste their first turn - it's extremely hard to kill enough monsters to make it a positive, unless you've got a ton of ranged ability and some good die rolls. In the game I just finished, the OL just charged straight for the objective on turn 1, leaving a line of helper goblins. Now, my rolls were crap - both he and I expected Jonas the Kind's Heroic Feat to do a huge amount of damage to his team, instead I failed 4 out of 5 rolls and the only hit did zero damage. My remaining rolls continued to be crappy - it took my skirmisher two attacks (using his special) to finish off a goblin, and my apothecary also took two shots to off one. I moved my last character away from where he was positioned to pick off stragglers into a position to block. On the OL's turn, he Dark Charmed my blocker, picked up the objective, Dashed it away, and pushed his guy two spaces from the exit, with a pile of blockers. (The push ability is move one space, so pushers can push him through the water as though it isn't there.) I actually could have caught up with and killed the goblin, but there was no point - after reinforcements he still had 8 guys on the board. I would have needed to 1-shot every one of them to win; if I missed even one, he just places a reinforcement, picks up the objective, and wins. So I just searched the board and ignored the goblins (and as a final kick in the balls the game gave me the Secret Room token, with no way to search anything in it - just a zero gold token and a place to hide so as not to give the OL more Threat.)
The other game I played against the same OL was similar; I rolled a bit better, but even though I was taking goblins off the board left and right it just wasn't possible to wipe him out to the last man before he was close enough to just spawn a goblin, grab the token, and run it off the board.
Am I missing something about this adventure? Are other people's experiences different? The OL just seems to be holding - if not all - at least a lot of the cards on this one.