I was browsing the net earlier and I saw cards named "Fancy Heroes" and immediately realized that they are the female counterparts of E-Heroes. One question: Why aren't these awesome cards in the game?. The are a complete set of cards with non-overpowering effects. Is it possible to get these cards up in running in Percy?

They're not implemented because they are fan-made cards, which is why information on them can only be found in the yugioh cardmaker wikia.