I'm wondering this as well. But it's also not the first time I have seen someone suggest that Dragoons can be off tanks either. I was in an Ramuh Ex party a few weeks ago which was running with a solo tank. The tank then said that if he died I should run to B (which was a mark 90 degrees to the tanks right) and act as an off tank while he was rezzed and collected 3 orbs. I didn't voice my opinion but I'm sure you can gather my reaction. The person with the lowest magic defence tanking an enemy who throws about lightning bolts for fun. What could possibly go wrong?
Of course the tank did die and I went and took up my spot on the executioners block. I'll show how it went in gif form.
http://p.fod4.com/p/media/e0203a4fe8...c31674f80d.gif
