In my empiric testing, I've come to suspect at there is
something fishy in ambush code when it comes to monsters
summoning helpers. Example: I was killing Hera with Makke
(crimsoranger, alertness, dex) and he told me that most of
the time when entrying room with Hera and several (5-6)
golems he would get messages about avoiding most of the
ambushes all the time. But, come time for Hera to summon
a new golem middle of battle, he'd be ambushes 5 times
about of 5. I don't think this is all about Mr. Murphy,
so what I ask if wizard would be interested enough to
check over the ambush / alertness / mobs summoning
code(s), don't think ambush avoiding works right
in these cases.

This Hera run was certainly not the first time I've
encountered this kind of behaviour regarding ambushes
with monsters bringing helpers into battle.

-Thank for reading this far, Broetchen