trapped in revamp hell
No, Ven had to connect his heart with Sora because MX had separated it in two, but he was able to wield the Keyblade before that. With an incomplete heart, Ven wasn't able to summon the Keyblade anymore, so Xehanort brought him to DI and said "A prison-like world filled with nothing. What an appropriate place for you." He was referring to the fact that Ven was useless to him now that he was in a comatose state, unable to call forth the Keyblade (or do anything). Once Ven was able to connect his heart with Sora's and become whole again, he was able to summon the Keyblade.Originally Posted by leonidus
Wait a goddamn second! When Ven's heart joined with Sora, Ven summoned the Keyblade. Then, is Ven able to wield the Keyblade because Sora is the chosen one or vice-versa?!
YouTube - Birth by Sleep - Terra's Interference + Vanitas' Origins