Azorius control deck with Dragonlord Ojutai, Celestial Colonnade, Elspeth, Sun's Champion, and Jace, Architect of Thought as win cons.
We only run 4 creatures, 2 Vendilion Cliques with the purpose of tucking bad stuff away (and maybe a little beat down if necessary), and 2 Dragonlord Ojutais for the win.
Of course it wouldn't be control without counterspells. Spell Snare is super situational but so useful early game. Remand stalls for time and gives card advantage. Mana Leak is an excellent early game counter, Negate works against any non creature-reliant decks (and is a nice hard counter against planeswalkers), while Logic Knot is a nice late game counter to get rid of whatever is building up in your graveyard (and can pretty much act as a Counterspell by the time you should be playing it). Detention Sphere clears tokens en masse and gets whatever manages to get through your counters, while Path to Exile gets rid of creatures. Finally, Shadow of Doubt slows down people with fetches, and also shuts down a lot of tron's plays, which is great because tron seems to be filling up the meta these days.
In terms of the other spells, Call the Gatewatch fetches whatever planeswalker you need (essentially giving you three of each in terms of draw odds) while Supreme Verdict is a nice uncounterable boardwipe. Serum Visions gives scry and card draw and is pretty darn useful.
Planeswalkers are you primary win cons, so don't put them down until you absolutely need to or you can protect them thoroughly. Jace, Architect of Thought helps against token/aggro decks and adds anticipate abilities, and his ult lets you steal their best card and put out something of your own. Narset Transcendent's primary function is to sculpt your hand and build card advantage, whether through her +1 (which is especially powerful with only 2 creatures), or her -2 combined with Serum Visions. Elspeth, Sun's Champion, well, she needs no explanation. She's just victory in a bottle.
Ghost Quarter is your answer to manlands and any Cavern of Souls shenanigans.
Sideboard-wise, Leyline of Sanctity counters burn, mill, and discard (with three in there, just mulligan until you get it turn zero and then protect it with counterspells). Stony Silence counters affinity, and to some extent, tron as well (see: Expedition Map. Geist of Saint Traft adds some beatdown if it's needed. Timely Reinforcements is also a lovely card to stall against aggro, by giving you more life and three blockers. Teferi, Mage of Zhalfir is the super control counter by ruining their ability to cast instants.
I'm in a win con search right now (I feel a little fragile with only 2 planeswalkers and 2 manlands), so if you've got an suggestions hit me up. Also, I'm always looking for any better counterspells out there, so suggestions are welcome and appreciated.
Thanks in advance for the comments/suggestions and upvotes!
P.S.: Call the Gatewatch is modern-legal, as on Wizards card gatherer it says so. Ignore the "Modern Illegal" tag on TappedOut.
