Made a pretty nasty misclick mid-game that cost me a 4-level difference kill and a lot of blackspace to fix the problem. My time suffered tremendously as I had to play very cautiously from that point onwards. Didn't kill me, though, so as far as misclicks go I'll take it.
Surprised how few people took Jehora today. Mystera and the Dwarven Gauntlets were both very tempting and I admit even I had to think it over, but in the end I concluded that Chaos Avatar is just too good to pass up in this dungeon. If you use it before the Itsssama battle the resistance wipe is awesome, if you use it after the weakening wipe is awesome, and you can time it in between for the best of both worlds. Plus the corrosion wipe is just plain useful with those creepers around. The Dwarven Gauntlets are nice, but Boost Health will give you more HP sooner and being a human with wisp gems on the ground attack bonus is a diminishing return. I combined this with Earthmother for a guaranteed 30 piety to launch me to chaos avatar smoothly. Really helps when you're sitting at 80 piety - if you don't spend your piety you're going to overflow 100 and start wasting it, but if you do spend it right now you might not be able to hit chaos avatar when you need it. Having a desecration in the bank solves this problem completely.
Anyways, I started the Itsssama fight at level 6, leveled up to level 7, then finished him with a chaos avatar to level 8. I then poison-fought Firstborn with the remaining blackspace. Annoyingly I hit a vampire on the very last tile, but I had enough popcorn and potions to finish with resources to spare.