The idea of a Black Clover box designed to hold all the bluray sets is a neat throwback to the pre-crash era. In a sense, modern shounen is like collecting singles again.
Though it doesn’t look like all the Black Clover bluray spines will show a picture when put next to each other. That would’ve been a nice touch.
This reminds me though that, one of these days, I should get around to seeing more of Overlord.