But in 3rd edition those flayers work with spelllike abilities replacing the psionics. They still are psionics, but count as spelllike abilities.

I agree that about the psionic abilities. If you're gonna give a monster psionics, you gotta make a psionic class to balance things out.

Hell, in BG2, Ithillids can even lay a Pit Fiend out cold.

Dragons and Ithillids are the ones that annoy me the most. They are so hard for my party to defeat. If I see a Ithillid or a Mind Flayer I just want to shoot my computer! God I hate them so much, annoying little bastards! Ithillids and Mind Flayers also have the annoying ability to pop up when I least expect them to. There were even some mind flayer's wating in the underdark! ARGH!

Illithids(are Mind Flayers) actually are creatures of the Underdark. Just FYI.

I'd probably go with trolls too. They're not that hard, just annoying. Especially the ones that die and form 3 or 4 little ones.

Random encounter spawn's I must say, esp after a big fight when your on your way to an inn to rest up..

Other than that, spiders and other posioning monsters since you have to either take spell slot's up with slow/cure/neutalise posion or carry a stack of antidotes on you at all times.

The comes scroll's, I know not a monster, but BG2 mages use them so often to get off spell's in such a way you can't stop them no matter what you do so they might as well be.


Adamantuium(sp?) golems, big ugly and need highly enchanted weapon to harm, nearly totaly magic resistant.


the list goes on, but none as nasty as can happen in pnp, nasty DM who ever heard of a room full of orc children bah...

Any monster that Level Drains.

I've given this some more thought... I generally don't think of stronger or more advanced enemies as irritating, until I remembered Kuo-Toans.
Oh, how I hate them.
Tons of HP, resistant to magic, and they can see right through invisibility so you can't even walk around a huge clot of them. Eats my time right up.

Illithids are a complete nightmare but I also really hate the groups of Gauths you get on the Unseeing Eye quest - for some reason they really annoy me.

Assasins/thieves. Ever notice they go for the mages at the back. Bastards