
Since Mirklace and Verminous are your most valuable figures, you want to protect them as much as possible stacking them near each other is nice because they can swarm large waves near the two of them, slowing the heroes down.
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So to sum up I went with mostly offensive creatures (the Ironbound I had in reserve would've been for protecting Mirklace). Part of why my strategy worked was I had the portcullis to Mirklace's lair sealed the entire time, allowing me to harass the heroes from afar with the Chaos Beasts and Rylan. Mirklace was able to get the third shard by the time the heroes had all piled up in the central corridor, and after they opened up the hazard flow room, I gave them a taste of my Shadow Dragon which rolled really well knocking out two of them and seriously injuring the third. They managed to kill Tristayne, but rather than roll with their punches and push forward to kill Rylan and the Chaos Beasts, they went back to the center of the map to help the Conjurer, who was getting swarmed by Rats and Changelings. I sent Tristayne and a few monsters (probably Chaos Beasts or Changelings, I can't recall) their way to discourage them. It was my luck that they sort of split up early on the Conjurer stayed behind to work the switch while the other two went for the shard to their left (my right near the stairs).

The Berserker was their best hitter, boasting the Grinding Axe. My heroes were somewhat starved for good gear (though they did have the Rune Plate and Stone Armor I believe). Having 3 extra 4-die monsters on hand isn't too shabby.

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I chose Chaos Beasts because of their synergy with the decidedly powerful lieutenants you have access to in this quest. I used the Basic II deck myself alongside the Enchanter deck and Rylan's plot deck. As an overlord I wanted that inner sensation that the heroes had to come to me. I assume you were sitting on the end of the table with mirklace, looking toward the heroes?
