Lastly, combining with the DX Transteam Gun (sold separately), you will unlock the DX Transteam Gun's Rifle Mode. The toy comes with the Cobra Full Bottle, which you insert in the DX Transteam Gun to transform into Blood Stark. This Full Bottle is of course, compatible with the DX Build Driver (sold separately). The DX Steam Blade cost 3,240 yen and is set for an October 14 release.