|This article is about a/an Mirror Monster in Kamen Rider Ryuki.|
|Episodes:||Kamen Rider Ryuki: Episode Final|
|Season:||Kamen Rider Ryuki|
Dark Dragon Dragblacker (暗黒龍ドラグブラッカー Ankoku Ryū Doraguburakkā?, Episode Final): A mechanical black Japanese Dragon monster that's Kamen Rider Ryuga's Contract Beast. It's a dark version of Ryuki's Dragreder. It was destroyed alongside its master.
In the World of Faiz, after Daiki took Tsukasa's Ride Booker, Narutaki took advantage of the situation as he took Tsukasa into another dimension to be killed by Kamen Rider Ryuga. However, after interrogating Kiva-la on the whereabouts, Daiki intervenes while claiming it was to get the Faiz Gear as he gives Tsukasa back the Ride Booker.
In his fight with Ryuga, Diend summoned Kamen Rider Kiva ("A monster for a monster.") when Ryuga summoned Dragblacker, transforming him into his Final Form Ride Kiva Arrow form soon after. He used Kiva Arrow's Final Attack Ride to counter Ryuga's Final Vent. Diend's final attack prevailed, seemingly destroying both Ryuga and Dragblacker.
The alternate Dark Rider Ryuga from the World of Negatives was also able to summon a Dragblacker, which he did while fighting Decade after he acquired the K-Touch and assumed Complete Form. Decade summoned Final Kamen Ride Ryuki Survive as Ryuga prepared his Final Vent with Dragblacker, with Decade's final attack prevailing and destroying them both.
Dragblacker was among the Contract Monsters that fought Kamen Rider Decade along with their contract holders in the Rider War. He, along with Dragreder, attacked Decade head on, and were shot down before they could even reach him.