It looks very much to be real, but it appears someone accidentally posted it early and then pulled it down.
The text comes from the official Konami Database, but it was pulled down. The claimed link is here. (There’s nothing there at the moment)
According to sources we have, the card’s text is apparently:
Chocolate Magician Girl
Level 4 WATER Spellcaster-Type Effect Monster
(1): Once per turn: You can discard 1 Spellcaster-Type monster; draw 1 card.
(2): Once per turn, if this card is targeted for an attack: You can target 1 Spellcaster-Type monster in your Graveyard, except “Chocolate Magician Girl”; Special Summon that monster, and if you do, change the target of the attack to that monster, and halve the attacking monster’s ATK.
We must stress that this effect is unconfirmed, and we are only reporting it because multiple Asian sources we trust believe that it has some weight to it. We’ll keep you informed of further details.