First Nightmare Victory.
The first boss drop was Blood of Life. I never used it.
Honestly wasn't that hard, the first dungeon doesn't seem to spawn rares so the first five levels were basically gift-wrapped and by level 6 it was just off to the races. At no point in the game did I not feel like a buzzsaw.
Was generic starved all game. FORGOT TO DO THE ARENA. *facepalm*
Got The Untouchable early and rolled with it for the entire game. Reckless Strike triggers it which makes it even better than it usually is. Draining Assault is gonna heal it all back so it's practically a net life gain for doing it under The Untouchable. Reckless Strike also gives a giant buff to resistance penetration that's not mentioned in the description. (Incidentally because of this I mulched 7 of the High Peak bosses in a few turns before they could really fight back. A couple got to play though, and that was terrifying.)
Blighted Maul is hilarious against monster boxes everyone gets hit like nine times. If you're on two-handers, have +global speed and Blighted Maul I don't know what else you could possibly want to be doing.
Bathe in Light is cool with Reflective Shield. Took it twice from Escorts. It's so good. ...I tried to kill Orc Pyromancers this way in Vor Armory because I was scared.
I still don't know how I feel about Arcane Might.
Timeless/Draconic Will is absolutely absurd. Timeless lowers Draconic's cooldown to 10 and extends the effect to 10 turns, so you're immune to everything for 15 full turns. (Except Knockback! Kept getting knocked through walls

The Sorcerers went down in ~12 turns.
Doombringer feels really strong at pretty much everything. Knowing you have Surge of Power in your back pocket if things go really bad really makes you want to go balls out all the time. Feels like what Berserker wanted to be.