Dwelled on level 4.7. Lucra appeared on the second day; on the second week, I found a stash of Shaman, Lich, and Undead creatures. In the middle of week 3, I cleared the first portal to the Treasury; out of the two Water Elementals, only the staff with - initiative was good, and I found some decent artifacts on the ground. On the third day, I was planning to retreat home for reinforcements and a portal, and then head to the guest area, but my opponent conceded. I'm not sure how I would have beaten a dark-summoning Lucra with mass casting of Darkness spells, a Haste Stone, a Shield, a Fan, and with almost a hundred Vampires.
Thanks for the game.