-s_art-: each clan could raise the level corresponding predetermined amount of Exp
so the clan rank is not determined according to the number of players and level of players

make a notification to the owner of the castle when his castle clan attacked by another clan
so the castle owner can try to defend their castle

clan leaders can also provide position as he wishes to clan members, and each position are given have their respective functions.
Such as: Kicking clan members, invite new members, etc..
function name can be varied in accordance with the dreamer as many names that can be used ^ _ ^