"Alright, before we venture farther in to the rocky area, a few things to look out for." Walker wanted to brief the party on the dangers in this area that they would face while traveling. He had some knowledge of what monsters inhabited the area and how to avoid or fight them. But more importantly, he wanted to share the dangers each possessed so they all acted appropriately when they came across them.
"The diamond fang snake is fairly rare. But its' fangs can pierce armor easily. This means being poisoned by its' venom when it bites is guaranteed unless we are protected from it like Su." This was the least threatening monster for them but Walker still spoke of it. Just because it was rare didn't mean they wouldn't face it.