Hmmm, I am not sure about the strength of this card, but Furnerallaughter makes a good point. Perhaps if you made a different card that sent cards back to the top of your deck from your hand or field, this card would be very useful.
Try making a different card with the effect of:
A) Seeing the top card of your/both decks.
B) Returning a card from your field or hand to the top of the deck.
and then linking
it to this one. I have to say that the method of obtaining the card is very creative though.