Spell has two effects with different targets: direct damage to the primary target and melee attack power reduction debuff to all enemies around.
Direct damage portion should be causing threat to the primary target properly.
For the debuff there is a flat threat value specified in the database, but it seems that MaNGOS doesn't support applying correct flat threat value from database if targets of all the effects of a spell are not same.
Not sure if that was fixed somehow in CoreCraft yet but probably should look into that.
Spell has two effects with different targets: direct damage to the primary target and melee attack power reduction debuff to all enemies around. Direct damage portion should be causing threat to the primary target properly. For the debuff there is a flat threat value specified in the database, but it seems that MaNGOS doesn't support applying correct flat threat value from database if targets of all the effects of a spell are not same.
Not sure if that was fixed somehow in CoreCraft yet but probably should look into that.