Okay. So this is a weird one. When I was playing a PvP match, the enemy Kerberos spawn a Ghoul after I team wiped, per Gate Guardian (seen below).
Now, the strange part is that I got the Ghoul to one-shot range, but when he attack me with skulls, the game just ended. The Ghoul never died, though. I still got the win so I suppose it isn’t too big of a deal, just very peculiar.