Try to add more dodge, via gear and evade buff. If you can get unbuffed dodge up to around 20, add 30 when buffed, means you will dodge half of the attacks. Makes a huge difference in pve. Also, when players are scattering the mobs apart on a regular basis, it's best to just find another group. Accidents happen, but some players do not even attempt to play as a team. Avoid games with sword/shield weilding mages... that is a guarantee that you will end up with all of the aggro.

Don't forget to use Avian Scream when you get mobbed. Even one point is useful, and max will break you free from ice.