Legendary Dragon of White
Card Database: 10321
Dragon 
LIGHT 
Rank 8 Xyz / Effect ATK3000 DEF2500 3 Level 8 monsters
Must be Xyz Summoned and cannot be Special Summoned by other ways. If this card attacks your opponent directly and reduces their LP to 0, while it has an Xyz Material attached that was originally Dragon-Type, you win the Match.
TCG: Illegal
OCG: Illegal
MD: Illegal
Genesys: Illegal