A level 27 monk was sayng they were having trouble with rotting corpses. My monk is very much under the corpse's level and a fair bit under 27. They are like giant rats to monks.

UAF: 245 vs UDF: 252 = 0.972 * MM: 77 + d100: 64 = 138
... and hit for 13 points of damage!
Slap across the belly doesn't barely leaves a mark.

XXXX leather handwraps spray forth a shower of pure water!

... 30 points of damage!
Dissolved larynx opens windpipe. Unfortunately it quickly fills with blood!
You hear a sound like a weeping child as a white glow separates itself from the rotting corpse's body as it rises, disappearing into the heavens.
The rotting corpse falls to the ground, rotting flesh falling from her bones.

Not all attacks are one shot kills. Tiering up kills them fast.