Pretty interesting card. But, if it will allow for abuse of AI, than something must be changed; either in AI or in the card. That death/spark deck is the prime example of AI abuse. Maybe if cards given to AI hand by this card could get lower "play value" in the algorithm that decides what to play... As it is, its like a cheat card.
But anyway...
Taking this and Dune in the same deck cant be a good idea, but this is (IMO) the positive way to mess with your opponents hand. As much as I dislike Dune scorpio for taking away cards from hand, I have no issues with this type of card, and I agree that this approach could produce some new interesting PvP action.
Obviously, this card is a good counter to Fractal. I just hope Fractal card will be revisited, and this isnt just an excuse card "dont complain, counter with Nightmare". I still think Fractal is limiting new card ideas.