Nightmare Fuel / Dice Funk

Season 1

• Partway through the season, the city of Stoneroot begins warping in unnatural ways. We later learn that the city itself is made from the pieces of Gorfinax and that it's coming alive and as the season progresses the situation becomes worse as buildings and statues come alive and begin killing people.

Season 2

• The meeting between Swift Justice and the Blackhearts which set off all the events of the season is described in graphic detail in Episode 20: the modron murdered the team with a chainsaw, severing Joan's leg and Fox's arm, goring Sherry, and tearing through Lita's head. COMEDY PODCAST!

Season 3

• Gylan Cadun is, in and of himself, a terrifying entity. A fascist bigoted bloodsucker with authority sanctioned by the state, who draws other power thirsty young people into his organisation. Perhaps nothing is more terrifying than the blood farm he's created in the Nynson Chapel.
• After Lady Nim's soul is sucked into Gorfinax, he spends the rest of the season agonizingly twisting it until there's barely any of her left.
• When Iris confronts Dora to avenge her drowned son, Dora strikes the old woman down and uses necrotic magic to age her rapidly, with her hair falling out and the skin sagging from her face, before finishing her off with a mere cantrip. She wasn't even worth the spell slot.

Season 4

• Ash is terrifying in himself, but him becoming the conduit of the form of Mercy, knowing how he interprets that, and then caressing Ed's face leaving acid trails while he's unconscious is enough to make you never sleep again.

Season 5

• Noble, a Reigar, is killed by being disassembled at an atomic level and his remains are left sorted by its base components. Even more terrifying is what killed him: a Witchlight, a creature that Noble created. Described by Austin as essentially being MissingNo, it's a creature that has no physical form, unknowingly disassembling everything around it. It has no concept of death and has no idea what it's doing, and physical creatures are physically incapable of understanding it, to the point that Sasha is nearly Mind Raped when she tries to use Detect Thoughts on it. Even worse, Vincent Caravella, being the Conduit of Invincibility, can weaponize it, carrying it around in his stomach as his Invincibility prevents him from being disassembled. He vomits it out when the party arrests him, and it floats through the Snallygaster (which Austin intends to be a One-Hit Kill to any NPC on the ship), drifting towards Courage and Objectivus, only being stopped from killing them by Olivia and Dregg Taking the Bullet for them, costing Olivia her left leg and only failing to kill Dregg by virtue of him being the Conduit of Obstinance making him literally too stubborn to die (and even then, it successfully disassembles him; Dregg survives by the sheer force of his stubbornness forcing his body back together).
• Colonel Cassius Pire is the leader of a racist paramilitary organization. He also kidnapped Olivia Adler/Lilith Sakana and held her captive for years, severed Big Star's arm, and killed their mentor, Dr. Tenma. Then there is his conduit ability, which allows him to teleport inside of people, exploding them from the inside.
• The truth about the Maxwells is pretty terrifying. They're the result of the Form of Hegemony crossing over into the world while the ruler of the Reigar, the Conduit of Hegemony, was conquering planets with a massive army. The Form's presence mutated the entire army into nigh indestructible monsters which wiped out all life on the Reigar homeworld.
• In the last few episodes Cassius takes control of the Maxwells and turns several of his allies into Maxwell hybrids, but when Ambassador Jacklyn betrays him, her body is quickly overtaken by the Maxwell as she's painfully transformed into a mindless monster.

Season 7

• Wolfram's Super-Empowering ability entails him implanting salt crystals into people which slowly replaces their blood until it begins bursting out of their bodies. When the process finally kills its victims, they explode.