Card Trivia:Gen the Diamond Tiger
- This monster is based on Takeda Shingen, the daimyo of Kai Province during the Sengoku period of Japan, who was also known as the "Tiger of Kai".
- This monster's effect can Special Summon "Ken the Warrior Dragon" to the opponent's field, whose effects are similar, but can also Special Summon this monster. This references the rivalry between Shingen and Uesugi Kenshin, the daimyo of Echigo Province, who was also known as the "Dragon of Echigo".
