Points of Light/YMMV


 * Complete Monster: As always, the Demon Lords, along with most of their Mooks.
 * Specific examples include Orcus, who wants to kill The Raven Queen and make the world an undead hell; Demogorgon, an Ax Crazy psycho even compared to other Demon Lords; Baphomet, who's evil influence turns the normally honorable minotaurs to acts of savagery; Graz'zt, a Faux Affably Evil Magnificent Bastard; Yeenoghu, who's worshipped by the almost-as-monstrous Gnolls; Pazuzu, who's a Manipulative Bastard that tricks otherwise good people into worshipping him as a god; Dagon, the brains behind Demogorgon's brutality; Kostchtchie, one of the most monstrous examples of The Brute to ever exist; and Juiblex, who's only slightly less evil in that he only destroys everything around him rather than engage in monstrous schemes. Demons in D&D basically wear Complete Monster as their hat.
 * Even some of the gods get into the act. Torog, for example, is the god of torture and patron of the Underdark, home to such lovely creatures as Beholders, Illithids, and Drow. Speaking of Drow, Lolth is still around and is still one of the most vile Monsters in the game.
 * And the aforementioned Demon Lords? They wouldn't EXIST if it wasn't for Tharizdun, the most vile God of Evil in the setting.
 * Don't forgot the stars: While at least one of the stars is good, most of them hate all life on the world. The absolute worst is Allabar, Opener of the Way. He's the one who lets these stars manifest their Star Spawn to attack the World.
 * Paranoia Fuel: A fair bit, but this is one aspect most people pick up on. Go out into the garden and night. Look up at all the stars twinkling so far above. Guess what? Each of those stars is alive. Each of those stars can see you. Each of those stars is watching you. And each of those stars hates you with a passion beyond human comprehension.