Sevalor Gorescale

Strategy

 * after taking some damage, his buddy Putretor the Rotting will come to help him out.
 * Tank needs to grab him, but group keeps DPS on the main boss always - except when a group-member gets trapped inside a 'vile prison' which you should take down fast (the trapped one can dps it also!) otherwise it will cause mass-fear!
 * get out of yellow circles on the ground as usual