If a member of the Demon Race can pass all the Nine Heavy Trials through their absolute power, then even if not one Great Demon Clan acknowledges them, the strongest demon with nine marks will still be eligible to compete for the position of the Demon King.
Similarly, even if one cannot pass a single trial, as long as they can have as many as nine Great Demon Clans swearing allegiance to them, they will also have the possibility of becoming the Demon King.
Among the surviving Great Demon Clans, almost all belong to the Three-stamp Demon Clan.
Generally, the Demon Race members who have no ambition to vie for the role of the Demon King will not challenge the Great Demon Clan Trial after they have three marks.
Each Great Demon Clan Trial almost always carries an impossible level of difficulty.
To reach the level of gaining marks, one must genuinely stake their life on it.