Synch Blade



Synch Blade is an ability which allows a Keyblade wielder to summon another Keyblade during battle. So far, the only characters to use this are Roxas, who can use this ability to summon his two Keyblades, the Oathkeeper and Oblivion, and Sora while in Valor Form, Master Form, and Final Form.

Roxas can use Synch Blade because he has both Sora's Keyblade and Ventus's Keyblade, due to Ventus's heart remaining within him. Originally, he just wields Sora's Keyblade, as Xion's creation had siphoned away Ventus's Keyblade. However, when she is destroyed, his stolen powers return to him, and he reawakens the ability to use Ventus's Keyblade. After Sora and Roxas come back together, Sora is able to mimic Roxas's Synch Blade within several of his Drive Forms, but since Sora possesses every ability that Roxas had, it is also possible for Sora to use Synch Blade naturally, without going into a Drive Form.

Kingdom Hearts
In the original game, it was only seen in the secret ending, Another Side, Another Story... when Roxas wields the Oathkeeper and Oblivion.

Kingdom Hearts 358/2 Days
In Kingdom Hearts 358/2 Days, Roxas can only use it in story mode after the death of Xion near the end of the game. It can also be used in Mission Mode when you have the Zero Gear equipped with three Ability Units.

Kingdom Hearts II
In Kingdom Hearts II, Roxas uses the Oblivion and Oathkeeper to fight Axel at the end of the prologue of the game. After, Sora can use Synch Blade when he is in Valor Form, Master Form, and Final Form. He also, for a moment, wielded Riku's Way to the Dawn Keyblade.