Starbuck_II: Yeah, Wizards often has different opinions on classic monsters than others. Ah well, 'diversity is the spice of life' and all that...

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Strangle Weed
Would you believe that it's a weed that strangles?

Seriously though, the strange weed is an aquatic equivalent of the assassin vine, animate seaweed slithering on the ocean floor and waiting for prey to get in their grasp. Indeed, strangle weed is pretty much just a variant of assassin vines; same hit die, same Challenge Rating, mostly the same ability scores, only one less point of natural armor.

The only major differences are the fact that, unlike assassin vines, strangle weeds have an Intelligence score (of 2, to be precise) and are generally weaker due to their lack of immunity to electricity and resistance to cold, as well as no entangling animation. Otherwise, though...yeah, it's another variant.


Stunjelly
As their name implies, the CR 3 stunjellies are an offshoot of the gelatinous cube.

...No, that's not a joke...well, the first part was, but the second part isn't. They aren't related to ochre jellies and their kin. Part of the infamous "room of doom" setup, stunjellies are gray, vinegar-scented (again, not joking) transluscent oozes that cozy up to dungeon walls so they can swallow passersby. They also, surprise surprise, stun you! Who would have guessed?



Stymphalian Bird
If you're ever read up on Greek legends, you've probably eat least passingly heard of these creatures. They're big, bronzed birds with a challenge rating of 4 and the ability to launch volleys of piercing feathers at an opponent. They also have Improved Critical on their natural weaponry, so they aren't pleasant to be struck by.

...Oh, and since it's by now a prerequisite of entries that mention it, here's more anthropophagy!
Quote Originally Posted by Tome of Horrors
They are particularly fond of the flesh of humans and elves, so always attack them on sight.