Greiger - Yugipedia - Yu-Gi-Oh! wiki

Greiger, known as Bommer in the Japanese version, was initially one of Goodwin's five Dueling Assassins as well as a member of Iliaster. Later, he became a member of the Dark Signers, bearing the dark mark of the killer whale and having his "Earthbound Immortal Chacu Challhua" (however, in Z-one's time-line he was not a Dark Signer[3], as a recording file implies).

Yu-Gi-Oh! Legacy of the Duelist: Link Evolution, OT, You're pointing! I've been pointing at your pointing! It's different than normal pointing!

Goodwin assassination attempt - Yugipedia - Yu-Gi-Oh! wiki

Z-one, Yu-Gi-Oh! Wiki

Signature card - Yugipedia - Yu-Gi-Oh! wiki

Greiger's Duel Runner - Yugipedia - Yu-Gi-Oh! wiki

Greiger, Yu-Gi-Oh! Wiki

Nistro (Tag Force), Yu-Gi-Oh! Wiki

Yugioh Wheelie Breakers Wiki - Colaboratory

Sect Ijuin - Yugipedia - Yu-Gi-Oh! wiki

Crow Hogan (Duel Generation) - Yugipedia - Yu-Gi-Oh! wiki

Morphtronic Convert Unit by AlanMac95 on DeviantArt

Greiger Character Profile : Official Yu-Gi-Oh! Site