I really think he should have had a bigger part in the story and should have been a raid boss or at the very least a strike boss. We could have gotten his sword as a raid/Strike drop. He looked VERY unique, and he is one of the few Hive (if not the only hive) we see in a cut-scene and can talk, excluding Oryx. I just feel like Bungie wasted a good opportunity with this guy.
In case you don't know this is Ecthar
[url]http://i.imgur.com/90a3tOe.png[/url]
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Seriously? THAT guy was Echtar?! Guy looks like a punk knight in the sword quest but based on that cinematic he's supposed to be HUGE!! Warpriest huge! We should have had Echtar in place of the damn Warpriest in the raid! Keep Oryx's power cabinet small.