Guardian Soul

Guardian Soul is a Keyblade from Kingdom Hearts II. Given to Sora by Auron after defeating Hades and restoring Auron's will. Its name comes from Auron being a Guardian of Yuna's in Final Fantasy X.

Appearance
The blade is similar to Aurons strongest weapon in Final Fantasy X, the Masamune. The hilt guard is a strange face while the key chain is Auron's jug that he has in Final Fantasy X. In addition, the sparks that appear when the blade is used to strike as per other Keyblades are Yevon symbols, a reference to the main plot of Final Fantasy X. This is, however, ironic, as Auron was instrumental in revealing the horrible truth of the religion.