Why do some yu-gi-oh Blue Cards have Blue backs and some of them have Brown backs

Question

all my cards have brown backs, but I have noticed other cards online with Brown, Blue and Yellowish backs.

Answer 1

the yellow one's ra the red's slifer the blue ones are obilisk and 3 dragons!! ^_^

was that helpful?! ^_^

Answer 2

ra and obelisk

pretty good cards

Answer 3

There is only one yugioh card with a blue back. Obelisk the tormentor.the others should have brown.(except the other god cards.)

  

Answer 4

A yellowish back should belong only to an authentic The Winged Dragon of Ra. A bluish back belongs only to an authentic Obelisk The Tormentor and A redish back belongs to an authentic Slifer the Sky Dragon. An original brown back belongs to normal cards. If you see a normal card with a different colored backing, it's a fake.