Kaos spews a line of acid, dealing (Ref save 22) 28 points of acid damage. The automaton has 114 HP remaining. Kaos can breathe in round 796, and is at 100N20E.
Round 794
The automaton flies speedily to 100N30E5Z. Kaos's teeth clang off the automaton (rolled 25). A wave of negative energy hits Kaos, who manages to shrug off some of it (30 Fort save), but still takes 16 points of negative energy damage. Kaos has 116 HP.