How to defeat a Brain Dead boss from the Feaster of Sould Quest?

Question

What is the best strategy to kill Brain Dead boss ? What is the loot from it and how often can i kill it?

Answer 1

You have 5 min to kill the boss, time counts from the first person who enters the room. (maximum 5 ppl)

Don't use SD or any energy attack, it will heal the boss and his summons.

First focus on Cerebellums, they use area energy attacks and heals the Brain Head. They won't respawn again after death.

Don't forget about "Bad Though" summons, they will respawns again and again until Brain Head died.  Kill them before they approach the main boss and heal him with energy attacks.

Continue attacking main boss and killing summons.

Answer 2

Worth to add, that Brain Dead is very sensitive to any ice attacks, so mages should use Avalanche Runes and druids should wave it as often as it's possible.