There are some rare responses like
I'm the Juggernaut, bitch!
Nothing better than a nice raw liver
when do heroes use it?
randomly when you select them (on the battlefield)
if you want to hear them "on demand" just spam click on the hero
Its "I'm the Juggernaut, lich! " He says it to lich
Originally Posted by borak98
Originally Posted by stbash
in rare part there is also I'm the Juggernaut, bitch.
IIRC the rare responses will play when you continually select your hero like in wc3.