If people bothered to notice, the ever elusive Irukul Tusk is about 300k each on the market.
Why so expensive? Well, it's a break off, and irukul is a pain to kill.
You can however do the breakoff easily with 2 people. Yes, you need 2. >__> Otherwise you're screwed.
So, the host does these two commands before activating the whole passage crap:
mp_friendlyfire 1
player_monster_damage_base_constant -9999999
Now attack each other a few times to heal to an exorbitant amount of HP. This will prevent you from dying after one hit.
Then disable it:
mp_friendlyfire 0
But set
player_monster_damage_base_constant to about 300. NOT 999999.
Now you have two options, either do the breakoff with spears, or with smashes.
The easiest way to do the breakoff is to get someone to tank on the bottom floor, while someone else goes all the way up, and drop one of those stones on him. You'll stun him.
The person on the bottom, preferably a fiona for that spring-shield smash move, constantly hits irukul's MIDDLE PART OF HIS left tusk. NOT your left, his left.
Eventually, it should break off.
Alternatively, you can spam spears, using the refill command to keep your stock alive.
Have fun. And help drive the prices down, I'm too lazy to farm myself.