[Freakygaara]

Originally Posted by Xentron

Well I'll be in Tokyo next year as well, from July untill the 22nd of August.
Maybe we could play some cards then?
For us to play Japanese players we'd need a Japanese deck though.
They have different rules than we have with european or american cards.

indeed, what u write is true, but it's not difficult to play with japanese card deck if u know well all card in card game, i'm not counting cards from only japanese sets which is always one set ahead for english sets, but still in the end there are lot off blogs with translated cards or even network translaters which allow to translate card to any possible language.
So, the final answer is, nope, Japanese language decks are not very difficult to face it in match, even if u do not know Japanese language well.