The Monsters Know What They’re Doing

More from Mordenkainen’s Tome of Foes: After the abishai, the next two requests I got were for the oblex, a slime-creature created out of mind flayer experimentation which feeds off humanoids’ memories. On D&D Beyond, Jeremy Crawford recently characterized the oblex as “D&D’s new scariest monster.” Is it? I’m not convinced that it’s the scariest, in terms of the degree of threat it poses—but I would say it’s one of the creepiest.

The main reason I think oblexes (I feel like the plural should be “oblices”) are more creepy than scary is that they don’t need to kill their victims to consume their memories. They can kill their victims, but they don’t need to. Furthermore, it’s not clear that they have any compelling reason to. It’s the memories that power them, not the physical substance of their victims. There’s also a curious choice of wording in the Eat Memories feature that makes me wonder whether an oblex has any good reason to use it more than once per target. But more on that below.

Oblexes/oblices have an unusual ability contour, with peaks in Dexterity, Constitution and Intelligence. Dexterity plus Constitution usually means “skirmisher,” but oozes can’t move fast enough to skirmish. What they really are is quasi-brutes with Dexterity- and Intelligence-based rather than Strength-based attacks and a keen sense of their opponents’ weaknesses. (more…)

After all the time I spent trying to figure out tactics for mummy lords and liches, I’m taking it easy on myself today and talking about oozes—those barely intelligent, probably nonsentient, subterranean amoeboids.

The fifth-edition Monster Manual claims that oozes “have no sense of tactics or self-preservation,” but I can’t buy the second half of that. They may be “drawn to movement and warmth,” but even an amoeba will move away from an electric current. Despite the lore that oozes originated as fragments of the demon lord Juiblex, I’m going to treat them as evolved beings, akin to slime molds—scavengers that exist as part of the subterranean ecosystem.

The MM lists four types of oozes: the gray ooze, the ochre jelly, the black pudding and the gelatinous cube. All of them have several things in common: negligible Intelligence and Charisma (the ochre jelly, with Intelligence 2, is the genius of the bunch), low Dexterity and Wisdom, high Constitution, an acidic pseudopod attack and 60 feet of blindsight. Also, all but the gelatinous cube are Amorphous and can climb walls.

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