In the Shadows

Quest giver: Captain Areha Burina
Requirements: Warmly faction and all missions of Tier 5
Size: 54

The final boss. Vishimtar hits for around 4500 and AE rampages for about 1000. He casts 3 spells regularly throughout the event:

When the tank gets hit with Withering Corruption another tank needs to step up and take over before it fades and they have their hp cut drastically. Vishimtar's Corruption lasts for 5 minutes so you'll need to have a good number of tanks in rotation to manage.

Throughout the entire event if a player dies it triggers the spawn of a mezzable skeleton, "a spirit wraith", which hits for around 1500 and have about 75000 health. Starting a few minutes into the event and roughly once a minute after "tainted eggs" spawn. These are only damaged by blunt weapons and if not destroyed quickly will spawn a number of Corrupted Drakelings which flurry for up to 1200, but have low health. There will also be a "cloud of concentrated chaos" roaming around, when killed they give the raid a massive heal and mana restore.

At 75% Incorporeal Shadows spawn one at a time until there are four up. These dervishes do nearly no damage and have only 500 hp, but if one dies it is replaced by a Lifedrain Shadow which can flurry for up to 2000. A good idea to remove all damage shields to avoid having them pincushion themselves to death.

At 50% four Corrupted Drake activate. These hit for up to 1200 and if killed instantly respawn. You'll need to have a dedicated kiter pick them up and keep them distracted for the rest of the event.

For the final 25% Vishimtar's health locks. He randomly casts Creeping Doom on people. Anybody that gets this (audio cue "You sense your doom approaching") must immediately locate a "mournful spirit" and /say "Shoulder my burden". This will cure you and allow Vishimtar to be taken down 1% more. Failure to do this in time (42-48 seconds) results in getting deathtouced. You'll need 25 people to get cured before Vishimtar can finally be killed.

The reward is 9 crystals each, 9 Shadowscale of Vishimtar for progression, an Eye of Vishimtar for the Mask of the Hidden quest, and three of the following: