Crazy dps inside Highmaul or any raid.

Looks like you can bring Overcharged Demolisher - Item - World of Warcraft inside of raid.

need Goblin Workshop lvl 3.

does a stupid amount of dps so it can't be intended, if you aren't able to use it inside they were probably teleported inside while activated or simply walked in (i don't have Goblin Workshop)
my proof is i was just in a raid with one :|