Forming a Clan was not something that could be successfully accomplished overnight.
First of all, you had to first obtain the Qualification Quest to form a squad. After that, you had to wait until you obtained enough strength to enter the Mythical Battlefield—also known as the junction of between the sacred and the evil continent. After accumulating a certain amount of Battle Points here, only then could you obtain the quest to upgrade your squad into a Clan.
In usual cases, players who were sent into the Mythical Battlefield by their squad or Clan were masters who possessed a certain level of battle power. Because having their manpower crippled would also reduce their battle power… in order to accumulate enough battle power in the most efficient way, it was only wise that they send Tier 4 elite players into the Mythical Battlefield. (Sending rookies into that battlefield would be giving away free points)