Editing Oathkeeper & Oblivion

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|jpname=Oath's Charm & Passing Memories

When at his full strength in ''[[Kingdom Hearts II]]'', ''[[Kingdom Hearts 358/2 Days]]'', and ''[[Kingdom Hearts III]]'', [[Roxas]] is able to use his [[Synch Blade]] ability to wield '''[[Oathkeeper]]''' and '''[[Oblivion]]''', two [[Keyblade]]s symbolic of [[Sora]]'s memories of [[Kairi]] and [[Riku]], respectively.<ref>'''''{{w|Weekly Famitsu}}'''''<!--If anyone knows which volume issue and page this is, please add it-->, '''Tetsuya Nomura''': "The Keyblades the boy who knows Sora is holding are the Oathkeeper and Oblivion from the first game. The precious "Oathkeeper", which Sora received from Kairi. The jet-black Keyblade, symbolic of Riku. The Oblivion, at first, was called Riku's Keyblade. The boy who has the Keyblades from Riku (darkness) and Kairi (light)... Who is he!?" [https://www.khinsider.com/news/Famitsu-showcases-Kingdom-Hearts-HD-2-8-Nomura-interview-released-8108 Translation via KHInsider].</ref> Roxas is able to wield two Keyblades because he is the [[Nobody]] of Sora, who possesses his own [[heart]] as well as [[Ventus]]'s.<ref>'''''[[Kingdom Hearts Birth by Sleep Ultimania]]''''', p. 617; '''Interviewer:''' "Why can Roxas dual-wield?" / '''Tetsuya Nomura:''' "Sora can wield two Keyblades at once because he has Ventus's as well as his own. As Roxas is a part of Sora, he also can use two. In ''Days'', Roxas awakened his ability to dual wield after fighting Xion. In ''KHII'', once Sora absorbs him, he can also dual-wield." [https://www.khinsider.com/news/BBS-Ultimania-20-Mysteries-Solved-2546 Translation via Lissar].</ref>

Roxas is not able to use his Synch Blade at first because of [[Xion]]'s existence, but her destruction awakens the ability, which he activates as he begins his assault on [[The World That Never Was]]. However, he is confronted by [[Riku]], who defeats him and drags his unconscious [[body]] back to [[Twilight Town]], where he is given false memories in order to keep him complacent within the [[simulated Twilight Town]]. However, by the sixth day there, Roxas has regained his memories, and when [[Axel]] attacks him for leaving the [[Organization]], Roxas summons the two Keyblades and defeats Axel.

A few months later, when Roxas is brought back into existence during the [[Keyblade War#The Second War|Second Keyblade War]], he is still able to use his Synch Blade ability, thus allowing him to duel-wield his Oathkeeper and Oblivion once more to help Sora and the [[Guardians of Light]] against the [[Real Organization XIII|thirteen seekers of darkness]].

[[File:Mission 93 02 KHD.png|left|thumb|Roxas utilizing both Oathkeeper and Oblivion for the first time in the World That Never Was before the battle with Riku in ''Kingdom Hearts 358/2 Days''.]]

In ''Kingdom Hearts II'', Roxas can only dual-wield Oathkeeper and Oblivion during his second fight against Axel. In this state, Roxas can do a five-step combo both on the ground and in the air, with his ground finisher a spinning slash that can knock enemies airborne and his aerial finisher being similar to Sora's [[Hurricane Blast]] finisher. He can execute the ground combo finisher at any point mid-combo by pressing {{button|square}}. In ''Kingdom Hearts II Final Mix'', during the boss fight against Roxas, Sora can temporarily use Oathkeeper and Oblivion by pressing The End during Roxas's Duel Attack and telekinetically wield the twin Keyblades in conjunction with his own Keyblade. The Keyblades react according to Sora's actions, spinning around Sora during normal attacks and piercing through Roxas during finishers.

In ''Kingdom Hearts III'', Roxas becomes an ally of Sora against [[Saïx]], still being able to dual-wield Oathkeeper and Oblivion. For the ''Re Mind'' scenario, Roxas is playable (only during the Saïx fight) and retains most of his dual-wielding abilities along with a few new tricks to give him the upper hand in combat. His [[Dual Shot]] finisher involves him twirling his Keyblades, shooting out a ball of [[light]] straight at the opponent for heavy damage.