Has anyone done Ossiran, the final boss of AQ20? Having done the fight at 60 I knew the whole instance very well and breezed though the first two bosses. (I skipped the others since the achievement is all I'm after) Healing through his damage is easy enough, even with the damage buff, so I didn't bother kiting him around to the pyrimds. However, every time I wiped (tried three times) it was because he casts a 30 second Cyclone on the tank and then owns the rest of the group. Any idea if it's possible to do this without a second tank? Group comp is in sig, thanks!

Edit: Cyclone, not Whirlwind.