Thanks all for your recommedations. In the end I decided to go with Syncopate AND Condescend. I really like how these X counterspells work in every stage of the game and didn't want to choose between graveyard hate and scry value. I also went with Memory Lapse but decided to exclude Remand – it's great in tempo, but tempo is already doing much better than control. And for the same reason I added Remove Soul in the last slot – being able to answer a two drop on turn two is key for Ux control to stand a chance against all the proactive creature decks in my format. And that one still works later where Miscalc becomes a bad cantrip – that's the decision I am least certain about.
Man. I love counterspells.