The Tale of Amatsu no Kuni and The Battle of Amatsu no Kuni are the only expansions where all cards added were based on the Ōkami and Sengoku BASARA series.
Dragons of War is another expansion which only features cards based on the Breath of Fire, Monster Hunter and Mega Man series.
Ace vs. The People and Dragons of War are the only expansions where a new hero was not added.
↑PlayTEPPEN on Twitter: "A few hundred years ago.... God VS Dragon The War Begins！ An invasion by Goddess Myria's army！ The Riders stand up to protect the dragons New Card Set "Dragon of War" 6.25.2021 PDT (Fri) TEPPEN HEADLINE #8 Live at 12PM #BoF #MonsterHunter #MegaManX " / Twitter