Pagan

Have some questions about Pagan. Is it only the first room (Anteroom) that has the 5man limit or is it the same for the Chapel and Darkness rooms? If you want to do the raidboss you cant start forming parties before you are at second floor?

anteroom and chapel are 5 man, darkness is 9

for the boss, you can form 9 man parties freely. the 5 man rule only applies when attacking mobs w/in those areas (darkness being the exception) however, you will need a 5 man party if you dont have the darkness key and you will have to hunt past the darkness door for the other key (same idea as the key for the MoS boss) but walkinginto the chapel to the darkness door, a 9 man party is fine.

Do u need 1 key per party or per person? What kind resistances have thoe mobs in darkness room?

1 key to open the door, and you can use it once.

What kind resistances have thoe mobs in darkness room?

Its pretty much the same as rest of pagan only higher level. Most mobs got Sacred Attack Weak Point and many of them drain you too.