Is it the visualization of something falling to the ground dead after being slain by a melee blow? Which would have the text Creature_01 has been slain by Player_01 ...
I like the guess... but No. If we don't have a better idea by tonight, I may post a clue to break up the log jam.
I was very lost with this one, i kept looking at the questions and not the answers to guess. Fipped it and was pretty easy.