http://ps3.ign.com/articles/827/827260p2.html
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Eye of Judgment also works hard to protect against cheating. When playing
online, you must scan every card you want to use beforehand with the Eye,
including multiple copies of the same card at once, so it registers all of
them. Once your deck is registered, the computer will randomly draw your
cards for you during online play, which means you can never secretly draw
from your deck to tip the battle in your favor. The computer keeps track of
every card in your deck and hand, ensuring that duels are played fairly.
The only flaw in this system we could find was that the game will mistake a
high-quality, color copy of a card for the real deal, meaning a sneaky gamer
could print off pictures of cards they don't have and duel online with those.
While this is regrettable, it doesn't necessarily damage the gameplay, since
they still have to follow the rules when actually engaged in a match - they
just don't own the cards they're using.
Otherwise, the online system works great, and supports text and video chat.
You can search for custom games or play ranked matches - whatever you prefer.
