What exactly is the problem? I don't understand.
He used Silence first turn and you were forced to discard a card? That's not a problem right, that's good use of the silence card. It's supposed to slow people down and make them unable to play cards.
It costs him one card and quanta to use silence, it costs you one turn and possibly a card (when you have to discard one). Same goes for nightmare. These cards aren't great as it is, now you are complaining about the only time they actually work well.