This card reads "Reduce opponent's hand to 7 (or 9, if Tables of the Law is active) cards until this character is discarded."
Now, no errata that I can find renders this to be a hand limit, thereby implying that your opponent's hand must have 7 cards and no more by the end of the turn. The way that the card is worded appears to me to say that your opponent's hand is reduced to 7, thereby implying that if it exceeds 7 AT ANY TIME it is immediately reduced back to 7.
Does this make sense to anyone, is it correct, and why or why not?