Lin Dong is the Punishment Elder of the Dragon Tribe. This rank wields huge authority as it is ranked even a little higher than other elders. The previous Punishment Elder was Qing Zhi.
Lin Dong has been given the seat of punishment Elder of the dragon tribal by the grand Elder because he got the primal Dragon Bone in the Dragon Transformation Pool (the most powerful type of dragon bones its the only one in the entire dragon tribal). He gave him the seat to create a direct connection between the dragon tribal and Lin Dong and to protect him from any tribal member.
The punishment Elder of the dragon trible has the Punishment Dragon Seal It controls punishments and anyone who possessed even the slightest dragon bloodline would be suppressed by it, the elder will have the authority to punish any member of the Dragon tribe.
The previous punishment elder of the dragon tribe was Qing Zhi he retired some times ago and this position became vacant until Lin Dong came.