The string appears to be a specific release title from a digital media distribution or fansubbing group, where [AWGS] is likely the tag for the group responsible for the encode or subtitles. Release Details Anime : Black Clover Episode : 34, titled "Light Magic vs. Dark Magic" . Resolution : 720p (High Definition).
: A high-stakes showdown between Yami Sukehiro (Captain of the Black Bulls) using Dark Magic and Licht (leader of the Eye of the Midnight Sun) using Light Magic. Watch [AWGS] Black Clover - 34 [720p]
: Licht reveals his motivations, citing a history of humans slaughtering his people for their powerful magic. Where to Watch Officially The string appears to be a specific release
For the best viewing quality and to support the creators, you can find Black Clover on several official platforms: Episode 34 | Black Clover Wiki Resolution : 720p (High Definition)