Master Xehanort's goal for Organization XIII was to create 13 empty vessels into which he could put his heart of pure darkness. Assuming for a moment Xehanort's heart truly is one of pure darkness, if you think back to the end of Birth by Sleep you have Master Xehanort confronting Terra who is enfused with Eraqus' light. They are all in either Xehanort or Terra's heart.
If it's Terra's heart Master Xehanort would have to either corrupt it or leave it to release his heart to fill his Organization. If he releases it we get Terra and Eraqus back, bringing the total of Keyblade wielders to 12 (Yen Sid, Master Eraqus, King Mickey, Terra, Ventus, Aqua, Sora, Riku, Kairi, Roxas, Xion, Lea) which is rather more than the 7 lights he needs and brings them almost even in numbers, rather than his advantage of nearly double Organization members.
If it's Xehanort's heart every vessel gets filled with all the Darkness of Xehanort and Terra, as well as all the light of Terra and Eraqus. Since any light prevents the vessels from being pure darknesses, he can't do this without creating a bunch of useless Xeroxes.
I have no doubt Xehanort is quite capable of outsmarting me in this matter, but I am at a loss as to how. Ideas?
Master Xehanort's goal for Organization XIII was to create 13 empty vessels into which he could put his heart of pure darkness. Assuming for a moment Xehanort's heart truly is one of pure darkness, if you think back to the end of Birth by Sleep you have Master Xehanort confronting Terra who is enfused with Eraqus' light. They are all in either Xehanort or Terra's heart.
If it's Terra's heart Master Xehanort would have to either corrupt it or leave it to release his heart to fill his Organization. If he releases it we get Terra and Eraqus back, bringing the total of Keyblade wielders to 12 (Yen Sid, Master Eraqus, King Mickey, Terra, Ventus, Aqua, Sora, Riku, Kairi, Roxas, Xion, Lea) which is rather more than the 7 lights he needs and brings them almost even in numbers, rather than his advantage of nearly double Organization members.
If it's Xehanort's heart every vessel gets filled with all the Darkness of Xehanort and Terra, as well as all the light of Terra and Eraqus. Since any light prevents the vessels from being pure darknesses, he can't do this without creating a bunch of useless Xeroxes.
I have no doubt Xehanort is quite capable of outsmarting me in this matter, but I am at a loss as to how. Ideas?