I noticed during the last two raids on Pinnacle that the Mitos were specifically targeting Defenders and Controllers. Any use of a debuff or control power lead to swift and terrible retribution. My Dark Defender was rendered useless due to this overwhelming aggro. Anything I attempted, even firing my weakest attack, would cause several nearby Mitos to attack me without mercy. The aggro I drew was so strong that I wasn't even able to be rez'd in the midst of the healing bubble. I would be put back down as soon as I got up. Its very, very frustrating to die, rez, immediately die, rez, and instantly die yet again just because I used Dark Blast on a piece of jello.