[EDIT: I was going to wait for more PC posts, but eh, why bother. Here we go...]
Okay Thak, you attack Jim. You hit him. He screams. You Darkness. Thak, you can't Dancing Lights again as you can only do that once per day, per UA. You also can't Darkness and Dancing Lights in the same round, for what it's worth. Oh, I don't really mind actually. Maybe the clock just struck 12:01 AM. You Dancing Lights as a 'pre-action', then attack and darkness in your first 'surprise round'.
Other PCs: it is now totally dark. Please respond accordingly.
Round 1, Jim goes for his potion and drinks it. Let's be fair and roll on the table. BR: 95. It's a Potion of Treasure Finding. Jim finds his own treasure.
Thak, you drop Jim.
Three pit ghouls attack you. I believe as an elf, you're immune to ghoul paralysis, right?
PG 1 miss miss miss (4 6 3, ugh). PG2 miss hit miss (10, 16, 10). PG3 miss miss hit (10, 10, 18). Weird, lots of 10s. You take 10 hp dmg, dropping you to -6. You cannot attack, but only rest, bind wounds, and seek further healing. Unless your wounds are bandaged, you will continue to drop -1 hp/rnd as usual. I think it's fair that 'cannot attack' should not be taken completely literally- it is a guideline abo ut the kinds of actions you can and cannot do. Anything that would exert as much effort as an attack you cannot do.
By the way, 'pit ghoul' should be distinguished from 'normal D&D ghoul'. They're a special Rob monster, been in most/all of my campaigns, and are larger and nastier.