Also Eek, I was in a hurry alst night to a party, along with having like 3 convos along with yours, but here is the rest of my tips for beating it.
We got the server record by the way.
We got a party of Whm, Rng, Rng, Rng, War/Nin, War/Nin
(You could be the rng with your theif, not a big diffrence)
The Tanks got at least a half dozen Hi potions, a dozen Holy Waters, Echo Drops, and of course poison potions. They were the stars of this bcnm, not the rngs.
The rangers were not required to have anything really but poison postions in case it got to close to them. and holy waters.
The White mage got the usual Yag drinks, ehi ether and reraise scroll, a holy water and poison potion too in case of a mistake.
Everyone buffs up inside, except the tanks who will need protect, shell and a bar spell each, for the trinary absorbsion.
The room is designed in a big square of sorts with 3 cement platforms in each compass point around the room(North West, East)
Each ranger stand on one, and shoots, not engages, no ws, just shoot.
The mage will stand on the entry way, and quickly escape if ANY tank dies, the rangers should be safe the entire time.
This way you can retry.
The tanks will provoke back and forth like a, usual normal party, but without using a weapon skill.
At about 80%, everyone uses poison potions, and continues as normal.
*If a tanks protect, shell, or dummy barspell wears off, they say exactly which one it is and the mage quickly runs a bit closer inside and applies the single target buff, which is a very fast cast time. and doesn't reuire them to be in harms way.*
At 50% health of the wrecker, The tanks will activate Mighty Strikes, but continue tanking as normal. As will the rangers.
This should increase the damage output, and keep the hate for the upcoming part. They should also prepare for the Wrecker's special attacks.
Around 20%-Continue tanking and shooting as before but tanks will now weaponskill with the 300% tp they will probably have. Rangers will still~ continue as normal. Mage will do what they do best.
**The most important thing of all is to keep your 3 buffs up on the tank. They must keep the wrecker busy at all times**
10% you are home free to do whatever. The Wrecker will pretty much be dead with 3 eagle eye shots, barrages whatever. But we didnt even use any of that.
Only the tanks renkied once the whole time. and their HP barely went into the yellow. This bcnm was one that took us 12 tries, and when we once, we just stayed calm and collected the whole time, we didnt try to make it stylish with 3 eagle eyes, astrals flows and whatever, we just reacted to what the wrecker did and stayed as normal.
Hope that helped you, I think our time was 5:30 or something.
Call me if you need me ^^