It does require skill, but not from everyone, I'm living proof of that. I have already pointed out my shortcomings as a PvP player but my two mates are PvP beasts. I had my moments, don't get me wrong, but for the most part i was a passenger on my journey to the lighthouse and my mates deserve all the credit for my flawless emblem. So, with that being said, my point still stands that grimoire or any gear/emblems that can only be obtained by certain activities is by no means a measuring stick for skill with Rumble being the exception as it only measures the individual, not the team as a whole.