Source of these holograms?

I'm trying to find out which plugin is causing these "damage holograms" to appear. It's too buggy and I'd like to remove it. The only two plugins I can think of are MMOCore and MythicMobs, however I looked through both of their config files and couldn't find anything related to this. I know this is horribly vague, but does anyone happen to know what plugin this could be from?