A Smile that's Black is the twentieth episode of the Shadowverse (anime). It aired in Japan on August 25, 2020.
Hiro defeated the mysterious Shadow Knight. Who appeared now is Mauro, the opponent who once fought in the National Tournament. "Mauro ... Are you also a Shadow Knight...!?" "Well... how about?" "Well, at least... I must be your enemy!"
Cards in italics debuted here.
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