Kurama - Yugipedia - Yu-Gi-Oh! wiki

Mai Valentine (FMR) - Yugipedia - Yu-Gi-Oh! wiki

Card evolutions, Yu-Gi-Oh! Wiki

Karim - Yugipedia - Yu-Gi-Oh! wiki

Gallery of Yu-Gi-Oh! Forbidden Memories cards, Yu-Gi-Oh! Wiki

Kurama (Yu Yu Hakusho), VS Battles Wiki

Peacock, Yu-Gi-Oh! Wiki

I guess Yurushima the Hermit is a parody of turtle the hermit from dragonball : r/DuelLinks

Kurama, Yu-Gi-Oh! Wiki

Yu-Gi-Oh! GX - Volume 009, Yu-Gi-Oh! Wiki

Kurama (TSC) - Yugipedia - Yu-Gi-Oh! wiki

Yami Yugi - Yugipedia - Yu-Gi-Oh! wiki