DL definitely a tad easier now - just got a bloodmage unstoppable win on it (gnome BM is pretty much ideal, none of the obvious items (Mage Plate, Crystal Ball, Elven Gloves, Fireball Ring) and no EM but Pisorf (with Mystic Balance but also with Trisword, so a bit jaunty) and Stone Heart, Mystera->TT (which got me an extra level or two). I did a cunning thing and moved the Avatar next to the door of his little subdungeon so plants wouldn't shut me off.
Pisorf was about as useful as Getindare would've been - maybe even more so - even though I had MB... took out the counter-fireballs and the MR bosses with it, as well as shifting another one to open up the subdungeon (popcorn subdungeon, which meant 24 XP with two TT boons

)... also used it to hit avatar into a plant a few times for more damage than I'd get with fireball, and for some reason this didn't create any new plants.
Anyways, I don't know how bloodmage difficulty will transfer for classes less obviously good/less obviously good for the dungeon but it seemed about right for a bloodmage win without massive luck on the items/gods front and having a little resources left over (which seems sort of in line with the other vicious dungeons).