105 SMolo Mage, Silver
First attempt seemed to go well at first but when I started to nuke then the dots and silences began. Health on me, pet and merc was bobbing all over the place then I went down in a snotty heap.
I don't fully understand Rondor's spiel above but I got the gist, licked my wounds and went in again self buffed. This time I just let pet do the fighting and I threw in swarm pets whenever able. Simples... All three of us attracted very little damage and Ivrikdal went down slowly but surely. Very little mana used by me or merc.
Two roamers to take care of on level. At the point when Ivrikdal spawned for me I was able to fight in situ without getting any adds.