The BD tag indicates this is from the official Japanese Blu-ray release.
Witanime.com is a popular Arabic-language anime community and streaming site that provides subtitles for various series.
"The Girl's Truth" (or "The Empire's Assassin Blade" depending on the translation). Key Character: Lux Arcadia. Plot Focus: Lux confronts truths about the old empire and his past.
This specific version is a rip in High Definition (HD) , which generally features uncensored scenes and improved animation quality compared to the original TV broadcast. Episode 11 Overview
The filename refers to the 11th episode of the anime Saijaku Muhai no Bahamut (also known as Undefeated Bahamut Chronicle ).
High-stakes Drag-Knight battles escalate as the season nears its finale.