I don't think either would be game breaking. Theres no single card to get with computer search that could really justify the 2 discard. Theres no huge draw for either to get, so the discard would eventually kill you. Some decks could take advantage of it, but most would just pass them by. And they can't honestly bring these cards back with slight modifications (discard 1, ect.) because then they become insanely broken.