well if you guys have read the manga of yu-gi-oh he kills people like burns them and thats awesome and i know that making anime for the purpose of selling merchandise sucks but yu-gi-oh is pretty cool i think... its just like this
Yugi: i play tangent wizard in defense mode and this card face down!
Kaiba: then ill play my blue eyes and attack you wizard!
Yugi: aha you fell for my trap! now you blue eyes is mine and i make up another rule that says that you lose and i win now gimme you cards!
^so basically they make up their own rules while playing i doubt all the cards do all that stuff they say they do.