all u need is 10 people 5v5 to start a game either on ffa side or clan side (use of fc's)
personally, i think itd be better if it is done offworld (aka away from cb and other clans)- and also better for the lower lvls to enjoy the game if it is NO combat tbh
but if it is combat, i may be tempted to just go activate my evil spells :p
castle wars is a bit long n a pain in the butt,:P
soul wars is possible to do off world - HOWEVER there is a rather large minimum req to start x v x as far as i remember