If you have 5 cards in deck, and have to draw 6 with Super Rejuvenation, you lose even if you have exodia in hand.
But the system gives a win.
Proof:
For cards like "Graceful Charity", "Dark World Dealings", "Solar Recharge", "Allure of Darkness", "Common Charity", and similar cards: if you draw the fifth piece of "Exodia the Forbidden One" through this effect, then you declare victory after you finish fully resolving the effect. If the second part of the effect causes you to discard a piece, then after you finish fully resolving the effect "Exodia the Forbidden One" is no longer complete, so you cannot declare victory.
If you have 5 cards in deck, and have to draw 6 with Super Rejuvenation, you lose even if you have exodia in hand. But the system gives a win.
Proof: For cards like "Graceful Charity", "Dark World Dealings", "Solar Recharge", "Allure of Darkness", "Common Charity", and similar cards: if you draw the fifth piece of "Exodia the Forbidden One" through this effect, then you declare victory after you finish fully resolving the effect. If the second part of the effect causes you to discard a piece, then after you finish fully resolving the effect "Exodia the Forbidden One" is no longer complete, so you cannot declare victory.
http://yugioh.faq.konami.jp/EokpControl?&lang=en&tid=63273&event=FE0006