Just an update on this.. seems like there are a few more. There's "The Duces" on Horde - 4x shaman. And last night I zoned out of BF to find 5x Dranei shaman staring right at me, of course we both reacted at the same time and cast chain lightning, and then his main ran up and thunderstormed my whole group back into the instance... haha

didn't catch the name, but the guild was multiplicity