I tried doing a search and couldn't find anything that answered my specific question, so I thought I would bring it to you lovely folk.
Let's take Glory of the Dragon Soul Raider as that is the most current Meta Achievement. Say I have all the achievements done except for one on my first toon, but that one I don't have I have on a second toon. Will the Meta achievement gather achievements from being account wide, or does an entire meta have to be earned on a single toon?
Thanks in advance!