Utgarde Keep

[ReeZe]

The end boss is revived by the NPC Entry ID: 24068 but you can attack him,
if you kill him the fight doesn't work, so you have to change the faction_a and faction_h to 35 in the database.

because I don't know how to do it as a console sql command, here's the info, maybe someone can.

 

[kureji]

UPDATE creature_template SET faction_h = 35 WHERE entry=24068;
UPDATE creature_template SET faction_a = 35 WHERE entry=24068;

I tested this out and it seems to have worked as you intended. I could be mistaken but I believe the angel thing autoattacks you while it is nearby, don't know how to fix that. Can't accidentally kill it anymore though.