The most notorious is This is a beach episode. In the middle of the underwater temple siege. Characters are literally drowning three episodes later, but here we are playing volleyball.
The problem was never the filler. The problem was the recaps. Once you skip the first 30 seconds of every early episode and ignore the beach volleyball match, Black Clover is one of the leanest, meanest battle shonen ever put to screen. how much filler does black clover have
Now, if only Pierrot would animate the final arc... The most notorious is This is a beach episode
Skip Episodes 29, 66, 80-84, and 143-148. You will miss exactly zero plot points. The show even recaps the relevant info when you return to canon. The problem was never the filler
The anime is the definitive version of the Elf Reincarnation arc (Episodes 92-119). The "filler" added to those fights—particularly Yami vs. Licht and Asta vs. Ladros—is superior to the source material. Conclusion: The Gold Standard of Long-Running Anime Black Clover proves a radical thesis: You can run a 170-episode shonen with almost no filler if you are willing to end the show.