"Grepher" (グレファー Gurefā) is a series of cards that revolve around the "Warrior Dai Grepher" card and the variation of transformations he suffers. Much like the Gigo series, this series tells the story of "Warrior Dai Grepher" and the journey that lead him to multiple paths. As his own Lore says, he is a Dragon manipulator, capable of fusing with them ("Ryu Senshi") or fighting them (along "Dragon Manipulator", as seen in "Cry Havoc!"). Some cards, like "Rivals Unite" and "Different Dimension Encounter", shows the encounters of the differents forms of Grepher.