Well i have around 30 ppl downt to take him down on saturday I was wondering is it true you can only take him down at night? and if any tips please post, and any other genral info about him thanks.
According to patch notes in C5 you can open the door any time using Unlock skill. I've not got a chance to try it out though.
Apparently 30 ppl if a bit less than needed. Zaken was raided by like 50 regular players in C4.
Zaken ports in the dungeon, and ports people in the dungeon as well. If you don't control the territory, ported people will be doomed. The whole dungeon is filled with high-hp monster - Zaken's minions. They are a bit lower in level than Zaken, have high sleep/hold resistance and most of them are aggro.
Also Zaken and his minions ignore silent move and similar abilities in C5. Generally people waiting for in-game morning behind the door kept silent move party to rez those who were killed by Zaken during night time. Sooner or later Zaken visited the place and killed everyone not in silent move state. Now this waiting (if you enter the dungeon at night time) will be harder.
Zaken has mass draining attack - one drains mp, one drains hp. So healers/rechargers standing next to raid parties will have hard time gaining enough mp.