You'd have to Wayback it, but there was a thread on 339 involving stating out a predator that was really damned nasty, and pretty accurate.
I did a search check, but the only thing mentioned were the creatures from Warhammer 40k having monsters that'd be the most accurate. The ones they mentioned for D&D are closer to the aliens that Ripley fought. They just need a tail added on.
What D&D monster did they mention, out of curiosity?
And ported from the last thread:
Q 8: A Drow has the At Home in the Deep feat, and Intensify Darkness. At Home in the Deep states:
Intensify Darkness allows someone with a darkness spell-like ability to make it into a deeper darkness spell-like ability (longer duration, wider radius, etc.)
Does that last sentence of At Home in the Deep cause it to not function for you if you change your darkness SLA to deeper darkness?