To have an ace up your sleeve is a familiar idiomatic expression that has been in use since at least the early 1900s
Instead of Reisen , her namesake is "Zero", a name commonly used by Allied forces to refer to the A6M
They also all shared the effect of "If this card would be destroyed you can destroy another "Six Samurai" monster you control instead"
Other unique patterns: Including energy symbol patterns, Pok Ball motifs, and tile designs introduced in various expansions such as EX series, Diamond & Pearl, Sun & Moon, Sword & Shield, and Scarlet & Violet sets
It also has cool little cartoons/sketches showing potential matchups between decks as if it was a real Pokemon battle
They offer enough value to build a deck around