Sverag - Hero's Challenge

When killing with a group of 3 or more in Sverag you'll randomly be given a pop up to undertake this mission. You can choose either Normal (for gear) and Hard (for augs), once you get the mission zone into the instance by clicking on the door to Razorthorn.

Inside you need to kill 4 bosses with a number of trash mobs on the way to each. Any time a party member dies the next boss will get a boost to damage and mitigation. If you have 10 deaths total the entire mission fails. Trash here likes to cast Marrow Drain, a slow and AC/stat debuff, so be prepared to cure (27 disease counters) and reapply haste.

The first stage is populated by barbarians and dwarves with Segnar, Defender of Razorthorn as the final boss. He casts Dread Glare, a PBAE 850 dd and snare, along with two guardians.

The second stage is full of kobolds and minotaurs with Uvilan the Tyrant at the end, casts the same Dread Glare AE.

The third stage is big guys; giants, trolls, and ogres culminating with Broo, the Defender of Solitude. For some weird reason it casts Thorny Vines, a targeted AE 1200 dd and root.

The final stage has no trash, just Grigak the Champion which summons timed waves of adds and only some are mezzable. The loot is on Grigak.

Normal:

Hard:

Trash in both versions can drop Splintered Totem of Rage