Was Black Clover inspired by Berserk?
Some influence pages have to be argued from panels. This one is a quotation. In interviews Tabata has listed his sources openly, and Berserk sits at the top of them: Miura's dark fantasy was the atmosphere he wanted, translated into a shōnen register of squads, rivals and shouted resolve. The European surface of the Clover Kingdom, its weapons, clothing and buildings, was researched out of photo books rather than invented, which is how the influence shows up on the page.
The rest of the list is a map of Tabata's reading: Dragon Ball, which he saw as a child and credits with making him a manga artist; Dragon Quest: The Adventure of Dai; The Lord of the Rings; Harry Potter; Guillermo del Toro's films; and the Jump lineage of YuYu Hakusho, Bleach, Naruto and One Piece. When Bleach ended, he published a comment on what it had meant to him. None of this is hidden: Tabata talks about his influences the way he draws, in the open.
The Library keeps the other side of this connection too: what inspired Berserk itself, and the full Berserk shelf in the archive.