need help in completeing this card need a cool background any help ?

[shonenhikada]

i need help on this cards can someone find a way to put a background in the back so i can complete it.

 

[Frunk]

Moved to GD Requests.

[+Jono]

Ohhh I can help but this is kinda a sort of magical mystic "Runic" Background is that ok?

[God GAK]

i can help you but i need the card in its original card maker size