I don't know why I even bother. You're incapable of using anything other than strawman arguments and double standards. Just because you saw ONE NPC do it doesn't mean that players are going to do it. I saw Sylvanas solo Bolvar and summon all kinds of magical chains to restrain him. I guess that means hunters are getting that ability soon!
See how asinine that sounds?
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And you answered your own question. Engineers already fulfill what you're suggesting. We don't need tinkers.