These are the people who I think should be a part of the 13 Seekers of Darkness.
- Master Xehanort
- Ansem Seeker of Darkness
- Young Xehanort
- Riku Replica
- Anti-Black Coat
The Organization will be eliminated at the hands of The 7 lights,Roxas and Lea making an even 10 on 10 keyblade wars this is how they are each eliminated or why they leave.
- Anti Black Coat will be the first member to fall after another battle against Mickey and Riku.
- Xion will be the next member to fall after Xemnas desrtroys her saying that the organization doesn't need the puppet anymore since she failed to bring Kairi to the Organization.
- Roxas leaves the Organization after hearing of Xion's destruction and joins the 7 lights to specifacally eliminate Xemnas because of what he did.
- Riku Replica will be the next member to fall after a fight with Riku
- Braig will be the next of the 13 to die after he is eliminated by Sora
- Isa leaves the organization after he has a brief fight against Lea. He doesn't die and tells Lea that he will be waiting for Lea at Radiant Garden.Lea then joins him and wishes Sora and the others "good luck"
- Vanitas is eliminated by Ventus and Aqua during the Keyblade Wars
- Ansem Seeker of Darkness is eliminated by Sora, Riku and Kairi during the keyblade wars for one last time
- Xemnas is struck down by Roxas during the Keyblade Wars
- Young Xehanort is struck down by Sora,Riku, Kairi and Mickey after the rest of the members(exept for Master Xehanort and Terra) are destroyed.
- Terra leaves the Organization to join the others after Young Xehanort is defeated. He agrees to join the others to help eliminate Master Xehanort once and for all.
- Master Xehanort is the final member to be eliminated. He uses Kairi, the final princess to forge the x-blade leaving the other 6 weilders left with no choice to fight Master Xehanort. After Terra,Ventus,Aqua,Sora,Riku and Mickey fight Master Xehanort and shatter the x-blade, the 7 princesses return leaving the 7 lights(Sora,Riku,Kairi,Terra,Ventus,Aqua and Mickey) to finish Master Xehanort with a 7-way light blast using their keyblades to destroy Master Xehanort!