When playing nightmare sometimes (not always even if they're all lvl 20) one enemy usually at level 10 gets some items that makes them run extremly fast, much faster than anything else in the game (not just wand-duration) and can go into our base and tank 4 demigods (with crap items) and all towers without losing more than max 10% health. I the AI had been any good he/her would kill the citadel with this set, but it doesn't. I guess there is some combination of artifacts, but what can it be? After that this demigod will kill my teammates constantly, since nothing can touch him/her. I have been able to counter this late-game with askandor, godplate, fathersring, and some other artifacts, but that's when I get 20 or so kills rather early. It seems to be bugged, expecially that extreme walkspeed.
appriciate any ideas.
last game regulus got this super item and got 35 kills (his allies got 3,4 and 4). And no, he didn't get ahead in kill until he got this superspeed-item.