Use next strategy If you struggling to kill him:
1)Attack him with simple AA.
2)Wait for Velen to reaggroing him so he will attack Velen instead of you.
3)Go AFK.Or dps (but make sure that yours threat meter won't reach 100%)
4)When boss have 10% HP - use all burst and kill him.
Elite
Fel Annihilator
Fel Annihilator is an Elite Mechanical, level 10 to 45, hostile to players.
Details
Fel Annihilator at a Glance
ReactionHostile
FactionDemon
Faction groupother monsters
Level and Map Tracking
The game data tunes Fel Annihilator for levels 10 to 45, Legion content.
In the Client Files
Standing toward playersHostile
Also Demon Mechanical in the current client data
The highest voted Wowhead comments for this page. They are community notes, not TheWoWDB comments.
This worked for me thanks, As a mage he would kill me faster then my allies could heal. Was infuriating,
Community notes from Wowhead · 5 comments
Top 2 shown above · 1 more hereThe comments below were written by Wowhead users. They are community notes, not TheWoWDB comments. See them in context on Wowhead.
Thank you!!! Was infuriating me as well...
Game Data
Creature ID111652
Display ID66490
Faction template954
Content tuning345
Related
Background
Art © Blizzard Entertainment. Fan reference, not affiliated.