4 Champion of the Parish
Why bother with this thing? You need to cast, like, 4 creatures in order for it to be worthwhile. It's just a vanilla beater. I'd consider other 1cc utility dudes in this slot . . . like, Stormscape Apprentice.
I'm not really sure what you plan to accomplish with the 2x Ivy elementals as well.
Ditto. (Tritto?)
Your counterspell suite is personal preference I suppose, but I like Mental Misstep more than Daze (I've taken a liking to it recently) and Spell Pierce is still good. Don't forget Daze is trash with Snapcaster.
Also, why are you using white? You don't even have STP in the main. Cut white and add Green/Red. Meddling Mage? I suppose with Gush it's a better than it's been in awhile, but honestly, I think R or G does more for you. The SB stuff seems weak imo.
-2 Steel Sabotage
-2 Lunarch
-4 Parish
-4 Daze
+1 Null Rod
+2 Spell Pierce
+2 Mental Misstep
+3 Nature's Claim
+4 Tarmogoyf
Which is more or less an updated BUG fish list (kinda boring, true), which I was always a fan of. UWx was never really my thing.