Just the title alone. One of the most dark, chilling, and iconic titles in all of literature, and a masterful use of the Literary Allusion Title in reference to Macbeth.
Will facing the Dust Witch, alone. Even when his plan to take her out goes horribly wrong, he still finds a way to fight her off.
Charles Holloway's faceoff against Mr. Dark. Need I say more?
It gets better. After the DustWitch joins in, he quickly figures out what's what and finds a way to completely cripple all of her senses!
Tom Fury has two moments of awesome appears in the Disney movie: The first one is during his resistance to Mr. Dark's electroshock torture. And then, after Charles shatters the illusions appearing in the mirrors, Tom arrives and stabs the Dust Witch with a now fully charged lightning rod, disintegrating her.
Mr. Dark's evil monologue in the library, where he throws away Charles Holloway's years like a demented auctioneer. He makes a Faustian bargain sound perfectly reasonable while scaring the holy hell out of the audience with nothing but his words.
For the Fanfic
Volume 1: The God of Death
How PROLOGUE gives us a glimpse of what many consider to be the ultimate Break the Haughty moment for Raven Branwen. Qrow hears rumors about Raven being in Vacuo, which is odd since she never strays far from her tribe in Mistral. When he finds her, she's become a Broken Bird that's been Drowning My Sorrows. The reason? Momonga killed off the entire Branwen Tribe when she attempted to raid a village.
Chapter 2 and Chapter 3 feature Momonga performing a Big Damn Heroes moment to save Shiroyuki, much like how he saved Carne Village in the light novel. He even channels his inner Demon General Bloodis by giving the Branwen Tribe an ultimatum.
Chapter 3 shows that Raven stands above others, mostly because of her Maiden powers. The Branwen Tribe couldn't fight effectively against the Death Knight, much less damage it. What is Raven's solution? To freeze it and render it immobile, then turn it into a "Death Knight skewer" by impaling it several dozen times over.
After the Death Knight is defeated, Raven assumes that Momonga is weak and has to rely on others to fight for him. Momonga instantly proves her wrong by taking off his mask and showing her that he is an undead. What follows is a Curb-Stomp Battle that readers have been looking forward to since they saw a glimpse of it in PROLOGUE.
Though it has since been revised on account of the author admitting to his mistake due to a lack of sleep and just wanting to publish the chapter before going to sleep, the original ending to Chapter 3 had Momonga use [The Goal of All Life is Death], a spell that bypassed any and all immunity to instant death. Raven had previously somehow managed to negate [Touch of Undeath] and [Paralysis], and following that, [Grasp Heart]. Raven managed to survive a skill that kills anyone, regardless of immunity!
Volume 2: The Lone Huntress
How Initiation goes. Unlike how it went for Team RWBY and CFVY, this time it's been changed to a battle royal-esque fight between all the initiates. For Shizu, it was cake-walk.
The introduction of the Wild Hunt—Grimm that have been around since the days of the Brother Gods. It's first seen commanding the Grimm in the castle to bring the intruders, Team RY_L plus Shizu and Port, to it. Team RY_L encounters it, and it winds up being a one-sided slaughter.
For many readers, Roy getting his recompense for leaving his teammates to die and his single-minded obsession with Shizu ends with him being carted off to Nazarick by Aura. So he can be experimented on to learn more about aura.
The surprise decision in the EPILOGUE chapter for Shizu to become part of a new team consisting of May Zedong, Arslan Altan and Reese Chloris, all of whom are canonically first-years like Ruby in the show.
The interlude chapter shows a man being accompanied by Demiurge, who calls him "President." That man happens to be Ainz, who is now assuming a human guise and is starting up his own business.
against Mr. Dark. Need I say more?