I have no idea what's up with Elisande and people in LFR tanking her. I've had 2 groups now where the tanks take the fast add right next to the slow add so the bubbles overlap mostly, that take Elisande into the slow bubble for some reason, risking getting the melee in there as well (and since it's LFR, it usually happens) and then start dancing Elisande around the room.
Is this some kind of strategy that revolves around moving the adds next to each other, then dancing Elisande around the room so noone can really hit her properly?