It can happen to human NPCs too. Like with thralls, it seems to be dependent on whether they are hit before they can draw their weapon and if they’re within punching distance at the time. So if they can hit their attacker with fists, they will try to do it.
Grey Ones, on the other hand, don’t seem to have this prerequisite. The two standing guard at the main entrance to the Pools have all the time in the world to prepare for the big scorpion to approach and attack them, but they both still use only fists.
It makes bringing lower-level thralls to the Pools more viable now, as even the one-skull Grey One bosses don’t kill the thralls in one fell combo anymore. On the other hand, it feels a bit dirty to bring a pike into a fistfight.
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