ok, finally found my first real 'broke' situation.
Take a party, any party you like. Give them any skills and upgrade you like up to 150XP worth. Gve them any equipment you like from the Silver or Bronze decks. Spend any XP you like on Tamalir upgrades (not that it matters really).
Now, the party is at Tamalir. Slaggoroth is within 3 trails of Tamalir and attacks them (special ability: if within 3 trails of the party may immediately move to their location).
It is Silver campaign, Beasts are Gold, Spiders have the queens special Spider upgrade (Pierce 2 and Burn). The OL has 4 Trap and 2 Event Treachery.
When Slaggorath (Trapmaster) attacks the OL pulls a hand of 1x Crushing Blow (1G), 1x Danger + 1x Rage (1G), 2x Pit trap (5 damage ignoring armour) (1P), 1x Dark Charm + 1x Crushing Block ( 3-7 damage ignoring armour) (1P), 2x Spiked Pit (3-7 poison Damage, ignoring armour) (2P). Thats 19-31 damage that ignores armour and does not require a monster.
Slaggorath hides at the back. She has 3 Master Bane Spiders (13W/4A, WGGAu, Poison, Web, Pierce 2, Burn) and 4 normal Spiders (12W/3A, WGG, Poison, Pierce 2, Burn), all Move 7. The spiders cover the exits 2-3 deep, usually at least partially in Trees so they can't be area affect killed or killed from a distance (except Spiritwalker).
Unless the party can force Slaggoroth to flee she can, and will, attack them every single week - she moves faster than they do! She can guarantee 1 or two kills, usually get three and unless the party is very good and very careful, is very likely to get a TPK! Every week!
My party wasn't great, but it wasn't that bad. Talia and Landrec are the best Tank and best Mage respectively. I had Spiritwalker on Landrec, Leadership, Telekinesis, WindPact (usually getting rid of the Crushing Block as it is the most effective blocker and combined with Slaggoroth can last-minute block an exit in front of a Runner) and virtually every useful bit of Silver gear one could ask for. Acrobat on the runner is the only thing missing, but that would just lead to the runner being trapped to death instead of blocked. All except Landrec had both Silver and Bronze upgrades (Landrec chose Spiritwalker instead, specifically so that I could have the opportunity to go after Slaggoroth). Most were fatigue upgrades except a Wounds upgrade on Corbin - in this case wounds would definitely have been better, but probably just dragged the pain out over several turns instead. All of the party except the Runner (Mok the Feeble with Wind Pact) one shot even the Master spiders - if they get to them.
So what to do?
With a bit of fortune I got my runner out both times we played this. The first was one of the water filled maps and the spiders were screwed, unable to get to the party. Two Master spiders only covered one exit and they couldn't shoot through the trees at the party. The rest were unable to come at the party due to more water. OL never got in a shot, but still killed Corbin through Traps and badly wounded Talia.
Second time was a more 'normal' map. A pair of slight errors by the OL leaving two cross-corner gaps to slip through for my runner and with Slaggoroth not deployed in a tree let me get my runner able to slip past two spiders until blocked by a third and Landrec (with Silver runes/staves and +6 surges/Sorcery) battle through the runner (Spiritwalker) with the Silver Breathe Rune (low damage, but have to get through the blocking spider unfortunately), then get in a third attack from a Guard (Leadership) - all three attacks used potions or fatigue to have 3 gold dice (max 3 dice in this map). The heavies moved to block off between the spiders and Landrec and be in position to assault next turn. I did 25/60 damage on Slaggoroth (and 3 Burn, which did no damage) and my runner with an Invisibility potion and a dodge was in the clear with only Slagoroth herself blocking the exit (she is surprisingly only 1 space. No heroes were equipped with weapons except Landrec (with the breathe rune, so unable to hit himself) and he could only hit the least important (positionally) hero Corbin (he even avoided the dark charm too!).
When the dust cleared Corbin was alone (Talia and Landrec throughly dead with OL attacks spare and Talia's Special no-tokens shield CBed. Corbin was a dead dwarf walking, especially as he missed with his knockback hammer (silver, so extra knockback from surges to move spiders) on his advance-for-the-exit action the following turn, but it didn't matter because the OL still had enough guaranteed damage from Traps left to kill him (unless he dodged 2 pits and most of the CrBlock). My runner escaped, largely because we were still at Tamalir so the OL didn't care if someone got away.
Note that the party has virtually all the critical skills (Spiritwalker, Telekinesis, Leadership, Wind Pact) and one shots all the monsters except the Lt. I had almost every piece of useful silver of bronze equipment. I had plenty of potions available and used up 3 on my first turn out of 4 heroes. Didn't really get a second turn.
The question for the forum is, what could any party do here?
1. Slaggoroth can move faster than any party, so hits every single week .
2. The amount of damage that she can hand out with treachery alone is staggeringly painful - and there is little the heroes can do to prevent it.
3. There is nothing the party can do to prevent at least 1, probably 2-3 heroes dying every single encounter, if not all 4. The treachery hand is that deadly. In addition, there will be a CB effect every week (I can live with that but it is on top of everything else and means things get worse rather than better)
4. It is very very difficult for the Heroes to actually get at Slaggoroth herself, because the Spiders block the access very effectively - all the more if there are trees on the board.
This is the first time in RtL I've looked at a situation and not been able to think of a way out. Maybe someone else can?
For the record I conceded the campaign for three (four) reasons.
1. The OL is going to win anyway through his whatsit thingy with the Scrolls.
With a weak party (no range character and a feeble (if irritating to the OL) second Mage/Runner) and a bad start (after carefully planning a dungeon pullout leaving the OL just short of upgrading in early Bronze, I pulled the Lost encounter when heading to the last-chance-before-upgrade dungeon and the OL got to upgrade anyway. Add that to approximately 16 bronze treasure draws before a single useful item (wow, amazing, another Ranged weapon... hey look its that same crystal trinket in the market as the last three weeks... etc etc) this party has been battling behind the 8-ball for a loooong time now.
2. Frankly, fighting Slaggoroth every evening we game has gotten boring already. And thats after just two fights!
3. We want to play with some of the ToI characters anyway
(4.) I won the first campaign as OL so now its 1 each.
Reasons 2 and 3 are the most important, especially 2.