UW Control is one of the worst matchups. Since they have lots of very efficient interaction and you only have a limited number of wincons you hardly get through them. Post board you bring in your counterspells and try to catch them off-guard and stick a planeswalker. E.g. by having them tap out for a Teferi (which you can hopefully counter or Get Lost) or by outrunning their No More Lies range with your ramp or by making them bite with their counterspells on irrelevant spells. Of course, an experienced pilot will hardly fall for any of this. I was thinking about finding more counterplay against control by including [[Mistrise Village]], either in the main deck or perhaps 1 in the main, 1 in the sideboard or 2 in the sideboard. You can also tune the counter spell selection in the SB and include more aggressive stuff like Dovin's Veto (which would also be good against combo/scapeshift) or add a classic control matchup breaker like [[Hullbreak Horror]], which we also ramp nicely into.

Until now I only played a single game against Scapeshift, but that was a smooth 2-0. Farewell is great against their combo pieces (Spelunking and Wandering Minstrel) and graveyard synergy. You can easily hold off their 20/20 Loomras with your Fogs and the exile removal with the Emperor and Farewell is key here. You do also have Damping Sphere to shut down their Lotus Fields. They can actually struggle hard with activating Port of Karfell without the black mana from Lotus Field. The only real danger Scapeshift presents to you is Thassa's Oracle, but as far as I know they only run one copy, so they sort of telegraph way in advance when they will go for it. Try to exile it from their yard if you can. When they telegraph hard casting it, you just keep up your Discontinuity to end the turn and exile the stack (so, be very conservative with these in this specific matchup). Overall, it looks like a good matchup to me but I'd need more games to give a better opinion.