owke i studied the problem and have done the mission myself leading my team.
what you need:
- a interrupt + pin down + dammage (burning arrow, screaming shot...secondary class dammage skills..) RANGER.
- A strong, defencive WORRIER/monk
- A second melee (Dervisch or Worrier) with a secondary class that enebels him to attack from a range. (W/e , W/r , W/me...)
- A mesher (illusion & domination) / necro (MM for getting to shiro without trouble + some curses)
- an elementalist. (with one knock down / slow down skill)
- Paragon.
(p/m)
- 2 (hero) monks.
anyway, atleast ONe non-monk carackter should have monk as secondary class to ressurect.
Now, once you get there:
ONE charackter (mesher or ranger) keeps shiro bussy. ALL the rest goes on the lich.
once he's dead, run for the middle, make sure you're not stuck on the ramp.
from now on, the ranger should keep shiro bussy, cripping him, running away... crippling him again...ect. cat & mouse game. (lock a monk on him or something or give him support by the worrier)
while the rest does the shirens.
once this is done: go for the middle, and set up like this.
--------------------------Ele------------------------------
---------------------------------------------necro/mesh
Monk---------------Shiro Worrier-------------------------Monk
----------------------------------------------Dervisch/worrier
------------paragon
------------------------------ranger-----------------------------
Now, The worrier & the dervisch start hitting shiro from start, just as dammage dealers, tell he reaches the impossible ods level of health.
Then they start running in circles, having shiro on them in turn. If one has shiro on him, the other one attack him from range (doesnt mather what dammage, even a starter bow will help

)
k, now VERY important: The ranger has a very specific & important job: slowing shiro bitch down: he should follow this patern:
Pin down
dammage shot
dammage shot
pin down
dammage shot
dammage shot
pin down
...
...
btw: do NOT poison / bleed him. burning him doesnt hurt since it's over soon. IO will tranfer the poison to the melee peeps & then ur focked.
-The ele should always keep dammaging him no mather what happen & slow him down if possible.
- The necro/mehser keeps him cursed all time, cause hex's work best on him.
- The paragon watches the whole scene, ressurects + dammage him when he can.
- monk...heal.
Now whole set up is based on SLOWING him down while the surrounding people hit him. it's important you KEEP dammaging him no mather what happens. people will die, thing will break up, just dont give up & try to restore the formation + KEEP DAMMAGING HIM all the time.
when i did it i (ranger) was with only 4 standing people left, but i kept on shooting him, the worrier kept on dieing, but that doesnt mather, aslong as he does not attack the ranger / ele / paragon you will survive.
now this tactic SHOULD & WILL work if all do his task.
thx

i hope the problem is sloved once & for all now.