How does Carnival of Carnage's Hammer have a kill icon?

YM

LVL100 YM
aa
Dec 5, 2007
7,135
6,056
99% sure it's a hardcoded feature of that particular trigger_hurt.
If it isn't specific to that exact trigger_hurt then it'll be one of the keyvalues used in trigger_hurt, go look what that exact trigger_hurt uses (by looking at the decompiled map) and use that keyvalue
 

henke37

aa
Sep 23, 2011
2,075
515
If it is anything like the train and sawblades, it's just the damage type being set to the correct value.