UW control featuring two planeswalkers who are grossly underrated in the current meta, Calciform Pools because I like drawing tons of cards and playing Cryptic Command off of a single land, and lots of basics to be resilient against Blood Moon.
Why you should choose this over UWr or other UW base control decks:
-This deck has a more stable mana base, which allows more resilience against blood moon decks.
-This deck has a slightly more stable role in the mirror match, making the UWr matchup slightly in your favor.
-This deck has a better matchup against combo and control decks, but a slightly worse matchup against aggro decks. If you've got a lot of aggro in your meta, play UWr over this.
Matchups (No percentages yet)
Affinity: Roughly even; this matchup is all about casting Path to Exile, Supreme Verdict and Cryptic Command, and trying to find an opening for gideon. In game two, you get better, with Nodes, Stony Silence, and Disenchant.
Junk: Depending on the build, this matchup varies from even to slightly unfavorable. You have very little sideboard tech against them, but they have the same for you. Landing a planeswalker is your best route to victory.
UR Delver: This deck is an uphill struggle. You will win this if you get a turn four supreme verdict after countering things. You will lose more often than not, unfortunately. Game 2-3 brings in porphyry nodes, Linvala (As a good sized body), and sometimes Runed Halo to prevent their three creatures from doing anything.
Red deck wins: Your RDW matchup depends on whether they are playing a creature heavy list. If they are, you're about even. If not, you will struggle. This is possibly the hardest matchup, and the reason I'm considering putting in a few copies of Timely Reinforcements for the sideboard.
Tron: Against RG Tron, you win. It's as simple as that. Game 2, you side in a few stony silence, and you will win even better. You just have to worry about countering their big spells, which isn't particularly difficult. UW tron is slightly harder, because they have their own counters, but it is won in a similar manner. Do not bring any stony silence in against them; it doesn't do enough.
UW(x) control: The name of the game is grind. Do not allow your opponent to resolve threats. Play lots of lands. Draw lots of cards. Sit around and do nothing. The presence of Sphinx's Revelation in this deck will allow you to jump out of UWr control's range.
The Rock/Jund: Remove/counter Tarmogoyf and Courser. Then go for Elspeth; she's the best threat in the matchup by a long shot.
Melira Pod: This is the harder of the two pod matchups to play. Your opponent will almost always go on the midrange plan. Remove their key creatures, particularly the ones with built in recursion, and counter their high impact creatures. Wrath liberally, and sideboard in your Torpor Orbs, Nodes, and Linvala.
Kiki Pod: This is like Melira pod, but easier. Counter their key cards, and prepare for a much weaker midrange plan than Melira Pod. Sideboarding is similar/the same.
Scapeshift: If they have Titans, counter them. This matchup is going to turns a lot of the time, so prepare for that. Games 2-3, Runed Halo makes it nearly impossible for them to hold up counterspell protection for their scapeshift. The most important aspect of this matchup is to NEVER leave yourself with a counterspell or two in hand, and the mana to cast them. Luckily, that's pretty easy in this matchup, because you rarely counter things other than scapeshift or snapcaster.
Twin: The hardest combo matchup of all, this deck has a roughly even matchup, due to its ability to play a powerful control game. Torpor orb is your most powerful sideboard card, obviously. Linvala can come in as an unboltable threat that kills nearly every creature they have in combat. They will almost always side out all their splinter twins, leaving it as a control mirror matchup.
Storm: Counter their draw spells, remove their electromancers, and prepare for a long game of beating them down with a planeswalker or colonnade. Game 2/3, you bring in runed halos, disenchants, rule of law, and relic of progenitus, leaving you with a practically unbeatable sideboard plan; all of these cards will ruin storm.
Bloom titan: Counter titans, counter Summer Bloom, counter Azusa. Pray. Game two, sideboard in Runed Halo and rule of law.