Modern UW Urza by Gyyby297
Urza, Lord High Artificer is one of the most powerful creatures in Magic. There was a time when it was the core card of the most successful deck in Modern, and yet these days, it shows up quite infrequently. Personally, I still put a lot of stock in old Urza, which is why this deck caught my eye. This Azorius Urza deck scored a 4-0 in a Preliminary Event in the hands of Magic Online player Gyyby297. It combines an effective shell of white creatures with Urza and his Saga to take maximum advantage of everything artifacts have to offer in Modern.
I particularly like the pairing of Ingenious Smith and Portable Hole. Since the lion’s share of creatures in Modern – and other nonland permanents, for that matter – are cheap, this pairing results in the world’s most effective Ravenous Chupacabra. It answers their threat while providing card advantage and a must-answer body.
Stoneforge Mystic does everything Stoneforge Mystic has historically done. If you expect it to go unanswered, you can find Kaldra Compleat in an attempt to win the game quickly (this, by the way, is a big perk of not using Lurrus of the Dream-Den as a companion). If you expect it to be met by an Unholy Heat, you can find Nettlecyst instead, which is easily castable and an extremely powerful standalone card.
Stoneforge Mystic can find Sword of the Meek to help assemble the combo with deadly consistency. Finally, if you add Urza, Lord High Artificer, then every new Thopter generates a mana, meaning you have a self-sustaining combo. You can gain an infinite amount of life and make an infinite number of Thopter tokens.
Azorius Urza has individually powerful cards, and several different highly-potent angles of attack. And yet, the whole is greater than the sum of its parts as it offers you tons of card selection and built-in synergies to help you take the game where you want it to go.